TRANSFORMATIONAL AND TRANSACTIONAL LEADERSHIP, WORK ENGAGEMENT, AND THE ROLE OF PERFORMANCE APPRAISAL POLITICS: EVIDENCE FROM PAKISTAN'S PHARMACEUTICAL AND CHEMICAL INDUSTRIES

VOLUME 3, ISSUE 2, 2025 JCS 467 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) TRANSFORMATIONAL AND TRANSACTIONAL LEADERSHIP, WORK ENGAGEMENT, AND THE ROLE OF PERFORMANCE APPRAISAL POLITICS: EVIDENCE FROM PAKISTAN’S PHARMACEUTICAL AND CHEMICAL INDUSTRIES Dr. Khizar Hayat Ubedullah Amjad Ali Atif Aziz Prof. Dr. Muhammad Asif Shamim Syed Muhammad Salman https://currentsign journal.com/index. php/JCS/index VOLUME 3, ISSUE 2, 2025 JCS 468 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) This study investigates the impact of transformational and transactional leadership styles on employee job performance, with work engagement as a mediating variable and performance appraisal politics as a moderating variable. Data were collected through a survey of 410 employees from pharmaceutical and chemical companies in Pakistan. Using Partial Least Squares Structural Equation Modeling (PLSSEM), the findings demonstrate that both leadership styles positively influence job performance, but transformational leadership has a significantly stronger impact. Work engagement partially mediates the relationships, highlighting the critical psychological mechanisms linking leadership to performance. Furthermore, performance appraisal politics moderates these relationships by weakening the positive effects of leadership and engagement under high political conditions. The study contributes to leadership and organizational behavior literature by contextualizing leadership dynamics within emerging economies and highly regulated sectors. Practical implications for leadership development, appraisal fairness, and work engagement strategies are discussed, along with study limitations and directions for future research. Keywords: Transformational Leadership; Transactional Leadership; Work Engagement; Performance Appraisal Politics; Job Performance; PLS-SEM; Pharmaceutical Industry; Chemical Industry; Pakistan; Organizational Behavior 1.1 Background of the Study Employee motivation, organizational performance, and leadership have been interdisciplinary research areas in as varied a range of disciplines as strategic management to organizational psychology (Avolio et al., 2021; Wang et al., 2023). Leadership styles in today's uncertain business environment of the 21st century have moved from authoritarian to more participative, transformational, and transactional models (Northouse, 2021). Organizations globally more and more realize that leadership is not merely hierarchical control but rather an art of motivating human capital to attain strategic goals (Yukl, 2023). Investment in developing human capital and leadership excellence is crucial in influencing organizational performance in knowledge-based industries (Uddin et al., 2023). As organizations strive to contend with challenges such as globalization, technology revolution, and demographic shifts, leadership styles now remain the dominant predictors of outcomes such as the performance, commitment, and innovativeness of employees. Globally, those technology-more sectors like chemicals and pharma pose a special leadership challenge. These sectors require compliance with innovation energy, putting a previously unexpected burden on leaders to encourage both operational success and human motivation simultaneously (Schuh et al., 2021). According to research, transformational leadership has particularly high impact Dr. Khizar Hayat Assistant Professor Iqra University, Karachi Email: khizar[email protected]du.pk Ubedullah Amjad Ali Associate Professor Iqra University, Karachi Email: ubed.amjad.sh[email protected]du.pk Atif Aziz Associate Professor Iqra University, Karachi Email: [email protected] Prof. Dr. Muhammad Asif Shamim Head of Graduate Program dr.as[email protected] Iqra University Syed Muhammad Salman Assistant Professor Department of Business Administration Email: smsalm[email protected].pk Abstract VOLUME 3, ISSUE 2, 2025 JCS 469 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) on creativity, compliance, and psychological safety in high-stakes domains (Hoch et al., 2020). While transactional leadership remains relevant, especially under circumstances where formal process and declared contingencies are required for steady performance (Breevaart & Bakker, 2022), dynamics between and among employee engagement and leadership styles, especially within the context of emerging economies, remain a terra incognita (Iqbal et al., 2024). In third-world nations like Pakistan, such leadership relationships become more complicated. The chemical and pharmaceutical industries of Pakistan are not only important to the country's economy but also to industrial development and health. The industries, however, are faced with structural challenges like skills shortages, bureaucratic inefficiencies, and global competitive pressures (Ahmed et al., 2023). Current sector reports indicate that despite looking for technology updates, employees' "human infrastructure" motivation, engagement, and performance fall behind (Farooq & Hussain, 2022). One of the greatest challenges that emerge in such industries is politicization of the performance appraisal practices. Performance appraisal politics political bias, favoritism, and political gamesmanship in grading can kill the morale of the employees and miscommunicate the leadership impact (Poon, 2021; Vigoda-Gadot, 2024). Current research has established that where appraisals are seen as biased, even transformational leadership ceases to have the ability to stimulate peak performance (Bakker et al., 2022). Therefore, the moderator role of the politics-of-performance appraisal is a strong but unexploited variable in leadership-outcome studies, especially within nonWestern high-demand industrial settings. In addition, work engagement has increasingly become significant as the central psychological intermediary between performance and leadership (Schaufeli, 2022). Defined in terms of vigor, dedication, and absorption, engaged employees have more potential for converting leadership inputs into performance outputs within the task or through volunteer work called Organizational Citizenship Behaviors (OCB) (Decuypere & Schaufeli, 2024). In spite of this increasing amount of research, much remains unknown regarding these dynamics, especially within the Pakistani environment where cultural, institutional, and industry-specific mechanisms could differently define these processes. Previous research points out that external social dynamics and psychological involvement measures significantly influence the behaviors and health of employees (Ali et al., 2024). The majority of earlier research on South Asian performance and leadership has been carried out in Western or developed industrialized economies, with limited evidence from South Asia's rapidly emerging industrial economies (Khan & Shahid, 2023). Additionally, the combined mediating effect of work engagement and the moderating effect of performance appraisal politics have seldom been examined simultaneously in an integrated model, especially in high-precision industries like pharmaceuticals and chemicals. This research thus arises at a nexus of these critical knowledge gaps. By investigating the direct, indirect (mediated by work engagement), and conditional (moderated by performance appraisal politics) effects of transformational and transactional leadership on both task performance and OCB in Pakistan's chemical and pharmaceutical sectors, the study not only tries strong theories in a different context but also offers practical advice for managers who must address technical skill and interpersonal relatedness. In the process, it aims to make a substantial contribution to global discourse on worker performance and leadership and provide sectorally and culturally contextualized understanding applicable to new economies. 1.2 Problem Statement The Pakistani chemical and pharmaceutical industries, as vital as they are to industrial and economic development (Ahmed et al., 2023), are struggling with inherent issues regarding the work VOLUME 3, ISSUE 2, 2025 JCS 470 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) performance and participation of workers (Farooq & Hussain, 2022). Transformational and transactional leadership are most significant to shape these factors (Bass & Avolio, 1995; Breevaart & Bakker, 2022), but seem to be at a disadvantage due to multifaceted organizational dynamics. The utmost in concern for such industries are politics of performance appraisals that have partiality and biases casting a shroud over the validity of review (Poon, 2021; Vigoda-Gadot, 2024). The politicization not only tilts performance measurements, but the trust between leaders and employees as well (Longenecker et al., 1987) prompts an urgent concern about the possible ways that leadership can play an effective role on employee motivation and performance within a scenario. The implications of this issue are deep and negative. Politicized performance management systems erode the trust of employees in organizational mechanisms (Ferris et al., 2020), resulting in disengagement, decreased organizational citizenship behaviors (OCB) (Bakker et al., 2022), increased turnover intentions, and decreased overall work performance (Poon, 2021). In strongly science-driven industries like pharmaceuticals and chemicals, precision and compliance to quality are of great relevance (Schuh et al., 2021). Low employee engagement rates have the potential to result in reduced quality compliances, low levels of product integrity, and rises in operational risk. These are problems in the industry environment that can undermine competitiveness in the relevant industry, inhibit innovation, adversely affect the economic and public health indicators of Pakistan (Iqbal et al., 2024). Thus, without controlling the leadership-employee engagement dynamics and preventing appraisal politics, these sectors risk experiencing systemic inefficiencies and reputational loss. In spite of the recognized significance of leadership, participation, and evaluation systems, there is still disproportionately research within current contexts (Northouse, 2021; Khan & Shahid, 2023) and a lack of information on how these variables interact within developing economies such as Pakistan. There is a critical lack of empirical research that examines how work engagement acts as a mediator between leadership styles and job performance, especially under the moderating effect of performance appraisal politics in Pakistan's pharmaceutical and chemical industries (Farooq & Hussain, 2022). Bridging this research gap is essential to formulating culturally appropriate leadership and HRM practices. With empirical investigation of such correlations, this study tries to make new contributions to the domain of leadership and organizational behavior and provide meaningful frameworks to improve employees' engagement and performance in Pakistan's most important industrial sectors. 1.3 Research Questions  RQ1: How do transformational and transactional leadership styles influence employee job performance in the pharmaceutical and chemical industries of Pakistan?  RQ2: Does work engagement mediate the relationship between leadership styles and job performance?  RQ3: Does performance appraisal politics moderate the relationship between leadership styles and work engagement?  RQ4: Does performance appraisal politics moderate the relationship between work engagement and job performance? 1.4 Objectives of the Study The main objectives of this research are: 1. To analyze the effect of transformational leadership on the performance of employees in the chemical and pharmaceutical industries in Pakistan. 2. To measure the effect of transactional leadership on the in-job performance of employees in the same industrial setup. VOLUME 3, ISSUE 2, 2025 JCS 471 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) 3. To analyze the intervening role of work engagement between leadership type (transformational and transactional) and worker performance at workplace. 4. To explore the moderating role of appraisal politics on interdependence among leadership styles, work engagement, and employee job performance. 5. To contribute to leadership and organizational behavior studies by situating the interconnectedness of leadership styles, work engagement, and appraisal politics in emerging economies, with special reference to high-regulation industries in Pakistan. 6. To provide practical implications for organizational leaders who want to improve employee engagement and performance and reduce the harmful impact of organizational politics. 1.5 Significance of the Study This research is practically and theoretically important. Theoretically, it contributes to existing knowledge by focusing particularly on the pharmaceutical and chemical industries in Pakistan. By considering the mediating effect of work engagement and the moderating effect of performance appraisal politics, this research contributes to knowledge on leadership-performance dynamics in the context of an emerging market. Practically, the results will offer policy makers and managers in the chemical and pharmaceutical sectors concrete recommendations. The recommendations can be used to encourage practices in leadership, employee involvement, appraisal systems, and ultimately organizational effectiveness and employee performance. 1.6 Scope and Limitations The population under study is limited to large chemical and pharmaceutical sectors in Pakistan. Information will be gathered mainly from managerial and operational staff working in these sectors. Although this will ensure specificity and relevance, it can restrict generalizability across other sectors or industries. 1.7 Definitions of Key Terms  Transactional Leadership: Leadership involving clear structures and rewards in exchange for employees meeting certain performance criteria.  Transformational Leadership: Leadership focusing on motivating and inspiring employees through vision, charisma, and personal attention.  Work Engagement: A positive, fulfilling, work-related psychological state characterized by vigor, dedication, and absorption.  Performance Appraisal Politics: Manipulation or bias in performance evaluations driven by personal or political motives within organizations.  Job Performance: Employee behaviors that effectively contribute to organizational objectives, encompassing task performance and organizational citizenship behaviors (OCB). This paper comprises five sections. Following this introductory section, section 2 provides an extensive literature review and theoretical framework. section 3 outlines the research methodology. section 4 presents data analysis and findings. Lastly, section 5 discusses results, contributions, limitations, implications for practice, and suggestions for future research. 2 Literature Review 2.1 Theoretical Framework: The conceptualization of this study is grounded in a multi-theoretical foundation, ensuring a robust and comprehensive understanding of the relationships among leadership styles, work engagement, VOLUME 3, ISSUE 2, 2025 JCS 472 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) performance appraisal politics, and job performance. Several well-established theories inform the development of the proposed framework: 1. Transformational Leadership Theory (Bass, 1985; Bass & Avolio, 1995) Transformational leadership theory posits that leaders can inspire and motivate employees to transcend their self-interests for the sake of the organization. This theory underpins the relationship between transformational leadership and job performance, suggesting that leaders who provide vision, intellectual stimulation, and individualized consideration foster higher levels of motivation, engagement, and discretionary effort among employees (Schuh et al., 2021). Within the context of the pharmaceutical and chemical industries of Pakistan, where innovation, compliance, and employee commitment are essential, transformational leadership provides a critical pathway for enhancing employee job performance. 2. Transactional Leadership Theory (Burns, 1978; Bass, 1985) Transactional leadership theory is focused on the requirement of formal communication between leaders and followers, such as contingent rewards and management-by-exception. Transactional leadership theory favors the clear connection between transactional leadership and job performance, especially in highly regulated and process-oriented sectors like pharmaceuticals and chemicals. Transactional leaders set clarity, enforce compliance, and maintain procedural consistency, which are central to maintain operation excellence (Breevaart & Bakker, 2022). 3. Work Engagement Framework (Schaufeli & Bakker, 2004) The Utrecht Work Engagement Model considers vigor, dedication, and absorption as important dimensions of employee work engagement. The theory of work engagement would predict that engaged workers are healthier, more productive, and proactive, and translate leadership influence into higher performance outcomes. Work engagement in this study is the mediating process through which job performance is affected by transformational and transactional leadership styles (Bakker, Demerouti, & Sanz-Vergel, 2022; Decuypere & Schaufeli, 2024). 4. Organizational Politics Theory (Ferris et al., 1989; Vigoda-Gadot, 2024) Organizational politics theory holds that organizational political behaviors, such as prejudice and favoritism, are likely to manipulate formal procedures like performance appraisal. For this study, politics of performance appraisal has been theorized as a mediator of the strength of the relationship between leadership styles, work engagement, and job performance. Perceived high appraisal politics would dilute the positive influence of leadership and engagement and thus negate trust and motivation (Poon, 2021; Ferris, Hochwarter, & Buckley, 2020). 5. Social Exchange Theory (Blau, 1964) Social Exchange Theory offers a broad framework for viewing the interdependent relationships among leaders and employees. Workers are likely to pay back with increased commitment, dedication, and performance if they feel that leaders provide them with support, justice, and consideration (Cropanzano & Mitchell, 2005). This theory enhances the argument that transformational and transactional leadership directly and indirectly influence employee outcomes through psychological states such as engagement, and procedural fairness during appraisals being imperative to uphold this social exchange balance. 2.2 Empirical Literature Review VOLUME 3, ISSUE 2, 2025 JCS 473 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) 1 Job Performance Work performance has traditionally been viewed as a basic construct in organizational behavior studies that captures the skill with which employees perform role-specific tasks and contribute to organizational goals (Motowidlo, 2003). Historically measured on task performance and organizational citizenship behaviors (OCB) dimensions, job performance captures not only technical mastery of tasks but also discretionary efforts that facilitate organizational maintenance (Organ, 1988). In recent research, workplace performance has been understood as a multi-dimensional outcome that is shaped by individual and environmental determinants. Leadership behavior, motivation levels, and organizational politics have become important predictors shaping the performance trajectories of workers (Bakker, Demerouti, & Sanz-Vergel, 2022; Vigoda-Gadot, 2024). Especially in highly technical and compliance-driven sectors such as pharmaceuticals and chemicals, the threats to sustaining high job performance are substantially increased (Ahmed, Ali, & Hussain, 2023). Transformational leadership helps achieve work performance by generating intrinsic motivation, commitment, and creative problem-solving in the employees (Schuh et al., 2021). Transactional leadership holds performance expectations firmly specified, in place through contingent rewards, and deviates from strays rectified through management-by-exception (Breevaart & Bakker, 2022). Work engagement is a psychological mechanism through which the impact of leadership is transformed into increased performance, and more engaged workers display more energy, perseverance, and flexibility in the workplace (Decuypere & Schaufeli, 2024). But the constructive contributions of work engagement and leadership are undermined by politics in performance appraisal. Performance appraisals instead become politically rather than performancecentered, demotivating workers and decreasing their will to exert discretionary effort (Poon, 2021). The interaction of leadership styles, work engagement, and fairness during appraisal, then, is thus a remedy on how to continue and enhance job performance in the organizational environment. In Pakistan's pharmaceutical and chemical sectors, where regulation pressures, technological dynamism, and organizational politics converge, job performance is the only measure of success at the individual and organizational level. Through the integration of transformational and transactional leadership, work engagement, and performance appraisal politics into one model, this study aims to suggest a new and integrated view of the determinants that influence improved job performance. This subtle analysis answers the need for research today that at the same time considers motivational, structural, and political factors influencing employee outcomes (Iqbal, Shahid, & Latif, 2024). 2 Transformational Leadership Transformational leadership, first conceptualized by Burns (1978) and further developed by Bass and Avolio (1995), is recognized for inspiring and motivating followers to exceed their own self-interest for the sake of the organization. It is characterized by four key components: idealized influence, inspirational motivation, intellectual stimulation, and individualized consideration. Transformational leaders create a vision for the future, intellectually stimulate employees to solve problems creatively, and attend to each employee’s development individually (Bass & Riggio, 2006). Recent studies have reaffirmed the effectiveness of transformational leadership in enhancing psychological safety, organizational commitment, and innovative behavior (Schuh et al., 2021). In high-demand, technically complex sectors like pharmaceuticals and chemicals, transformational leadership plays an essential role by fostering employee engagement and adaptability (Iqbal, Shahid, & Latif, 2024). These industries require not only strict adherence to regulatory protocols but also innovation and responsiveness to rapid technological advancements. Transformational leaders empower employees, reduce resistance to change, and promote proactive behaviors such as VOLUME 3, ISSUE 2, 2025 JCS 474 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) organizational citizenship behaviors (OCB), which are critical for organizational success (Bakker, Demerouti, & Sanz-Vergel, 2022). Moreover, transformational leadership significantly impacts work engagement by enhancing vigor, dedication, and absorption—the three dimensions of engagement (Breevaart & Bakker, 2022). Leaders who articulate a compelling vision and demonstrate genuine concern for employees' personal and professional development foster an emotional and psychological connection with work, leading to improved job performance. In the context of Pakistan's pharmaceutical and chemical sectors, where competition and compliance pressures are high, transformational leadership may bridge the gap between employee capabilities and organizational expectations. Thus, transformational leadership in this study is posited not merely as a managerial style but as a strategic resource capable of enhancing employee engagement and mitigating the negative impact of performance appraisal politics. Understanding its role is critical to improving job performance outcomes and addressing systemic challenges within Pakistan's industrial sectors. Hypotheses Related to Transformational Leadership: H1a: Transformational leadership style has a positive and significant impact on employee job performance. H2a: Work engagement mediates the relationship between transformational leadership style and employee job performance. H3a: Performance appraisal politics moderates the relationship between transformational leadership style and employee job performance such that the relationship is weaker when performance appraisal politics is high. 3 Transactional Leadership Transactional leadership, as by Bass (1985), exists on the follower-leader exchange to achieve desired outcomes. Transactional leadership draws from a management-by-exception active or passive system and a contingent reward system. Leaders stipulate roles and task expectations and reward employees for meeting performance (Northouse, 2021). While transformational leadership motivates workers beyond self-interest, transactional leadership focuses on expected performance accomplishment in the presence of clear structures and extrinsic incentive. Current literature further points out that transactional leadership is optimal within highly structured contexts such as the pharma and chemicals sectors, where strict protocol adherence and reliability are of most importance (Breevaart & Bakker, 2022). Such contexts value transactional leaders in offering stability, compliance, and efficiency in the smooth running of operations. Nonetheless, transactional leadership guarantees the achievement of tasks while maybe not necessarily motivating innovativeness or discretionary behaviors like OCB without transformational strength (Schuh et al., 2021). Transactional leadership is connected with work engagement through contingent reinforcement mostly. Workers who are offered clear expectations and equitable rewards for standard performance might be able to sustain higher levels of engagement, especially in places where ambiguity is a cause of tension and disengagement (Bakker et al., 2022). Transactional leadership matters most in the pharmaceutical and chemical sectors of Pakistan where it is critical to match employee behavior against strict regulatory standards and sustaining minimum levels of engagement to deliver highquality job performance. Therefore, transactional leadership is hypothesized in this study to have a positive impact on the job performance both directly and indirectly via the mediation effect of work engagement. Second, VOLUME 3, ISSUE 2, 2025 JCS 475 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) whether or not fairness or political factors form part of the performance appraisal practices, can intensify or diffuse this effect and hence moderation effects exploration becomes as important. Hypotheses Related to Transactional Leadership: H1b: Transactional leadership style has a positive and significant impact on employee job performance. H2b: Work engagement mediates the relationship between transactional leadership style and employee job performance. H3b: Performance appraisal politics moderates the relationship between transactional leadership style and employee job performance such that the relationship is weaker when performance appraisal politics is high. 4 Work Engagement Job engagement, as described by Schaufeli and Bakker (2004), is a positive, meaningful, work-related state of mind encompassing vigor, dedication, and absorption. Engaged employees are energetic, committed, and very involved in work, and thus they play a pivotal role in organizational performance. Empirical studies have proven the mediator role of job engagement between leaders' behaviors and job outcomes, and its generalizability to high-demanding industries (Bakker, Demerouti, & Sanz-Vergel, 2022). In the chemical and pharmaceutical sectors, work engagement is especially crucial owing to the regulatory sensitivity and technical complexity of the work. Engaged employees are likely to ensure high-quality standards, innovate within policy boundaries, and apply discretionary effort that drives organizational performance (Decuypere & Schaufeli, 2024). The three dimensions of work engagement—vigor, dedication, and absorption—combined form a psychological state that triggers consistent and high-quality performance under pressure. Leadership styles have been found to play a large role in work engagement levels. Transformational leaders foster engagement through inspirational motivation and individualized consideration, which contribute to the sense of belonging and purpose among employees (Schuh et al., 2021). Transactional leaders, through contingent reinforcement, give clear performance expectations and rewards, eliminating ambiguity and stress that otherwise cause disengagement (Breevaart & Bakker, 2022). Commitment to work becomes a critical mediator of leader behaviors and job performance outcomes in Pakistan's chemical and pharma industries where rule compliance and innovation go hand in hand with high performance. Employee engagement is more resilient to organisational politics and better able to sustain productivity and rule compliance in politicized settings (Bakker et al., 2022). Work engagement, therefore, is not only the result of quality leadership but also a process whereby leadership affects job performance. Its mediator function is at the core of understanding how transformational and transactional styles of leadership are equivalent to measurable employee performance improvements in highly regulated and formal industrial environments. Hypotheses Related to Work Engagement: H2a: Work engagement mediates the relationship between transformational leadership style and employee job performance. H2b: Work engagement mediates the relationship between transactional leadership style and employee job performance. 5 Performance Appraisal Politics Performance appraisal politics describes the distortion or manipulation of performance appraisals by self-interest, political factors, or supervisors/managers for political or personal gain (Poon, 2021). Instead of rating employee performance subjectively on the basis of objectivity and fairness, VOLUME 3, ISSUE 2, 2025 JCS 482 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) Table 4.6: Sector of Respondents (N = 410) Sector Frequency (n) Percentage (%) Pharmaceutical Industry 260 63.4% Chemical Industry 150 36.6% A majority of the respondents (63.4%) are from the pharmaceutical industry, reflecting the sector's larger footprint within Pakistan's economic landscape compared to the chemical industry. The pharmaceutical sector’s growth trajectory and regulatory complexity require dynamic leadership approaches, making it a highly relevant field for studying transformational leadership (Pakistan Economic Survey, 2023). Meanwhile, 36.6% of respondents hail from the chemical sector, a field characterized by its rigorous operational requirements and evolving global standards. Insights from this sector enhance the study's generalizability and provide a comparative perspective on leadership practices across related but distinct industries (World Economic Forum, 2023). 4.3 Measurement Model Evaluation Before proceeding to structural model analysis, the reliability and validity of the measurement model were assessed using Cronbach’s Alpha, Composite Reliability (CR), Average Variance Extracted (AVE), and indicator loadings. The results meet the thresholds recommended by Hair et al. (2021) for PLS-SEM, confirming the robustness of the measurement model. Table 4.7: Measurement Model Assessment (Convergent Validity, Reliability, and AVE) Construct Cronbach’s Alpha Composite Reliability (CR) Average Variance Extracted (AVE) Transformational Leadership 0.912 0.935 0.678 Transactional Leadership 0.884 0.912 0.721 Work Engagement 0.901 0.927 0.710 Performance Appraisal Politics 0.876 0.905 0.657 Job Performance 0.915 0.939 0.696 All constructs achieved Cronbach’s Alpha and Composite Reliability values greater than 0.70, satisfying internal consistency reliability requirements. Additionally, all constructs demonstrated AVE values above the recommended threshold of 0.50, confirming convergent validity (Hair et al., 2021). Thus, the measurement model demonstrates strong reliability and validity, justifying the next step of evaluating the structural model. 4.3.1 Discriminant Validity Evaluation Discriminant validity was assessed using both the Fornell-Larcker Criterion and the HeterotraitMonotrait Ratio (HTMT). Both methods confirmed that the constructs are distinct from one another. VOLUME 3, ISSUE 2, 2025 JCS 483 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) Table 4.8: Discriminant Validity Assessment (Fornell-Larcker Criterion) Construct 1 2 3 4 5 1. Transformational Leadership 0.823 2. Transactional Leadership 0.432 0.849 3. Work Engagement 0.645 0.501 0.842 4. Performance Appraisal Politics 0.367 0.410 0.371 0.811 5. Job Performance 0.615 0.487 0.709 0.389 0.834 Discriminant validity refers to the extent to which a construct is truly distinct from other constructs both in terms of how much it correlates with them and how distinctly it captures phenomena that other constructs do not. Fornell and Larcker (1981) proposed a widely accepted criterion for assessing discriminant validity. According to their method, the square root of the Average Variance Extracted (AVE) for each construct should be greater than the correlation between that construct and any other construct within the model. This method ensures that a construct shares more variance with its own measures than with those of other constructs, thereby establishing clear construct separability. Recent methodological advancements continue to endorse the Fornell-Larcker Criterion as a robust measure for discriminant validity, particularly in reflective measurement models analyzed through Structural Equation Modeling (SEM) (Hair et al., 2021). However, scholars have pointed out certain limitations of the Fornell-Larcker method, especially when inter-construct correlations are high. Table 4.9: Discriminant Validity Assessment (HTMT Ratio) Construct 1 2 3 4 5 1. Transformational Leadership - 0.472 0.688 0.392 0.640 2. Transactional Leadership - - 0.537 0.448 0.501 3. Work Engagement - - - 0.426 0.748 4. Performance Appraisal Politics - - - - 0.453 5. Job Performance - - - - - Henseler, Ringle, and Sarstedt (2015) introduced the Heterotrait-Monotrait Ratio of Correlations (HTMT) as a more stringent and reliable criterion for assessing discriminant validity. The HTMT approach compares the average correlations across constructs (heterotrait-heteromethod) with the average correlations within constructs (monotrait-heteromethod). HTMT values below 0.85 (or 0.90 in some relaxed contexts) indicate adequate discriminant validity. Recent simulation studies confirm that HTMT is more sensitive in detecting discriminant validity issues compared to the Fornell-Larcker Criterion (Henseler et al., 2015; Hair et al., 2022). In line with contemporary research practices, this study employed both the Fornell-Larcker Criterion and HTMT to robustly assess discriminant validity. The results confirmed that all constructs demonstrated satisfactory discriminant validity, enhancing the measurement model's integrity and supporting the validity of subsequent structural model testing. 4.4 Structural Model Evaluation and Hypotheses Testing This section presents the results of the structural model assessment, including the evaluation of path coefficients, R² values, mediation and moderation analysis, and the sequential discussion of each hypothesis developed in section 2. VOLUME 3, ISSUE 2, 2025 JCS 484 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) Model Fit Indicators:  SRMR = 0.065 (< 0.08 threshold) indicating a good model fit.  NFI = 0.89, considered acceptable. Path Coefficients, R² Values, and Hypothesis Testing: Table 4.10: Structural Model Results Hypothesis Path β Coefficient t-value p-value Decision H1a Transformational Leadership → Job Performance 0.412 7.821 0.000 Supported H1b Transactional Leadership → Job Performance 0.223 4.635 0.000 Supported H2a Transformational Leadership → Work Engagement → Job Performance (Mediation) 0.281 5.476 0.000 Supported H2b Transactional Leadership → Work Engagement → Job Performance (Mediation) 0.176 3.942 0.000 Supported H3a Performance Appraisal Politics moderates Transformational Leadership → Job Performance -0.198 2.841 0.005 Supported H3b Performance Appraisal Politics moderates Transactional Leadership → Job Performance -0.165 2.564 0.011 Supported H4 Performance Appraisal Politics moderates Work Engagement → Job Performance -0.142 2.112 0.035 Supported Discussion of Hypotheses Sequentially H1a: The results demonstrate a significant and strong positive relationship between transformational leadership and job performance (β = 0.412, p < 0.001), supporting the argument that transformational leadership is more crucial than transactional leadership in today’s dynamic industrial contexts (Schuh et al., 2021; Iqbal et al., 2024). H1b: Transactional leadership also significantly impacts job performance (β = 0.223, p < 0.001), but with a comparatively smaller effect size, aligning with contemporary literature that transactional leadership, while important, is less effective in highly competitive, innovation-driven industries (Breevaart & Bakker, 2022). H2a: Work engagement mediates the relationship between transformational leadership and job performance significantly (β = 0.281, p < 0.001). This supports the notion that transformational leaders boost employee engagement, which in turn drives superior job performance outcomes (Bakker et al., 2022). VOLUME 3, ISSUE 2, 2025 JCS 485 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) H2b: Similarly, work engagement mediates the relationship between transactional leadership and job performance (β = 0.176, p < 0.001), though again the mediating impact is less profound compared to transformational leadership, consistent with current engagement theories. H3a: Performance appraisal politics negatively moderates the relationship between transformational leadership and job performance (β = -0.198, p = 0.005). High organizational politics diminish the effectiveness of transformational leadership, highlighting the importance of fair appraisal systems (Poon, 2021). H3b: Similarly, performance appraisal politics also weakens the impact of transactional leadership on job performance (β = -0.165, p = 0.011), demonstrating that even structured leadership styles are vulnerable to perceptions of unfairness. H4: Performance appraisal politics significantly moderates the relationship between work engagement and job performance (β = -0.142, p = 0.035). Political environments dilute the positive effects of engagement, emphasizing the need for transparent organizational cultures (Vigoda-Gadot, 2024). 4.5 Discussion in Light of Contemporary Research The results of this study provide solid empirical support to today's leadership studies while adding new facts, especially in Pakistan's chemical and pharmaceutical industries. Evidence supporting both transformational and transactional leadership hypotheses shows that both types have their respective places in shaping employees' job performance. Nonetheless, the significant influence of transformational leadership (β = 0.412) over transactional leadership (β = 0.223) is consistent with contemporary research affirming the fact that transformational leadership is now becoming ever more of a necessity in fast-paced and knowledge-driven industries (Schuh et al., 2021; Iqbal et al., 2024). The evidence indicates that transformational leadership is better in employee engagement and improving job performance outcomes compared to transactional leadership. Transformational leaders, through inspiring a shared vision, intellectual stimulation, and individualized consideration, are better at creating a stronger psychological connection between employees and work (Breevaart & Bakker, 2022). This result supports existing research trends that highlight the significance of visionary, emotionally intelligent, and adaptive leadership in the fast-paced industrial settings of the present day. Apart from that, the mediating role of work engagement was strongly proven, emphasizing that leadership styles influence only indirectly and not directly but through the formation of engaged and energized employees. Transformational leadership had a stronger mediated role through work engagement, confirming that motivational pathways set by transformational behaviors have an important role to play in unlocking employee performances in high-demanding industries (Bakker et al., 2022; Decuypere & Schaufeli, 2024). The political function of performance appraisal politics is also an additional contribution to organizational justice and fairness discussions currently. Political agendas in the process of appraisals break positive associations between leadership styles and job performance, as this research found. This consideration brings authenticity to the reality that without a meritocratic and just appraisal environment, even top leadership styles are undermined (Poon, 2021; Vigoda-Gadot, 2024). Notably, transformational leadership effectiveness is more susceptible to organizational politics being present, where transparent HR practice becomes the imperatives. Accordingly, the innovation in this research comes not merely in validating up-to-date theories on leadership, but also building them by: Placing the findings in the context of Pakistan's chemical and pharmaceutical industries' growing market. Empirically determining that transformational leadership is better than transactional leadership in the current organizational setting. Emphasizing the pivotal role of work engagement as VOLUME 3, ISSUE 2, 2025 JCS 486 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) a psychological process converting leadership to performance. Determining that organizational politics can be a major obstacle to leadership effectiveness. Together, these articles add to the theoretical picture of leadership research and provide managerial recommendations to managers who want to maximize employee commitment and performance in politically astute organizational settings. This research section provided a comprehensive evaluation of the research model through rigorous quantitative analysis. The descriptive statistics showed a heterogeneous and professionally qualified sample of Pakistan's pharmaceutical and chemical industries. The test of measurement model ensured the reliability and validity of all constructs, and high convergent and discriminant validity was achieved based on the Fornell-Larcker Criterion and HTMT ratio. Structural model analysis confirmed that transformational and transactional leadership styles both exert strong positive effects on job performance of employees. Transformational leadership, nevertheless, had the much stronger effect to confirm the argument that visionary, participative leadership is becoming more and more important in high-pace and innovation-oriented industries. Work engagement was confirmed to be a strong mediator to convert leadership effect into the improved job performance outcomes. In addition, performance appraisal politics was also found to negatively moderate these relationships, emphasizing the need for fair and transparent appraisal processes. Overall, the research was able to test all the hypothesized relations, making new contributions to leadership and organizational behavior knowledge by enlightening the complex dynamics of organizational politics, engagement, and leadership styles in the context of an emerging economy. The findings provide practical implications for policymakers and leaders as they work towards building high-performance cultures within competitive and politically charged contexts. 5 Discussion, Implications, Limitations, and Future Research 5.1 Introduction This final section interprets the findings presented in section 4 in light of existing theoretical frameworks and contemporary research. It highlights the key theoretical and practical implications, acknowledges the limitations of the study, and suggests directions for future research. The discussion is grounded in the realities of Pakistan's pharmaceutical and chemical industries while contributing meaningfully to global leadership and organizational behavior literature. 5.2 Discussion of Key Findings The results reaffirm the centrality of leadership styles in influencing employee outcomes. Transformational leadership was found to have a significantly stronger impact on job performance compared to transactional leadership. This finding aligns with contemporary leadership theories, suggesting that in knowledge-driven, innovation-centric industries, transformational leadership fosters creativity, engagement, and superior employee performance (Schuh et al., 2021; Iqbal et al., 2024). Transactional leadership also positively affected job performance, albeit to a lesser extent. This underscores that clear structure, contingent rewards, and compliance mechanisms retain relevance, particularly in sectors demanding regulatory adherence such as pharmaceuticals and chemicals (Breevaart & Bakker, 2022). Work engagement emerged as a crucial mediating mechanism, reinforcing the psychological processes through which leadership translates into performance outcomes. Employees who experience vigor, dedication, and absorption are more likely to channel leadership influences into discretionary and in-role behaviors (Bakker et al., 2022). VOLUME 3, ISSUE 2, 2025 JCS 487 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) Performance appraisal politics was shown to moderate the effectiveness of leadership styles and work engagement. High levels of organizational politics weakened the positive impact of leadership and engagement on job performance. This result echoes growing concerns in contemporary organizational literature regarding the importance of fairness, transparency, and meritocracy in performance evaluation systems (Poon, 2021; Vigoda-Gadot, 2024). 5.3 Theoretical Implications This study contributes to leadership theory by confirming that transformational leadership is increasingly indispensable in dynamic and technically complex sectors. The mediating role of work engagement enriches our understanding of the internal psychological mechanisms underpinning effective leadership. Additionally, by integrating performance appraisal politics as a moderator, the study extends leadership research into the domain of organizational politics, emphasizing that leadership cannot be evaluated in isolation from contextual factors. The contextual focus on Pakistan's pharmaceutical and chemical sectors fills a critical gap in emerging economy research, offering insights applicable to other similar contexts facing regulatory pressures and dynamic market conditions. 5.4 Practical Implications Organizations in the pharmaceutical and chemical industries must prioritize the development of transformational leadership competencies among their managers. Training programs focusing on vision creation, individualized consideration, and intellectual stimulation could yield substantial improvements in employee engagement and job performance. Moreover, organizations must critically review and reform their performance appraisal systems. Ensuring fairness, transparency, and reducing perceptions of politics will strengthen the positive effects of leadership and enhance employee motivation and trust. Human resource policies should integrate mechanisms to foster work engagement, such as employee recognition programs, meaningful work assignments, and opportunities for professional growth. 5.5 Limitations of the Study Despite its contributions, this study has several limitations. First, the use of purposive sampling limits the generalizability of findings beyond the pharmaceutical and chemical industries of Pakistan. Second, the cross-sectional design restricts causal inferences. Longitudinal studies could better capture the dynamic nature of leadership and engagement relationships over time. Additionally, the reliance on self-reported data may introduce common method bias, although methodological precautions were taken to minimize this risk. 5.6 Directions for Future Research Subsequent research could apply this study to various industries and cultures to maximize generalizability. Long-term study designs would be more informative regarding the development of leadership styles and participation over time. Researchers would also be interested in exploring other moderating variables like organizational culture, employee resilience, or readiness for digital transformation, which could act as mediators of the leadership-performance link. Future studies should investigate complex systemic determinants, as in multi-dimensional studies in other areas like energy poverty (Aqdas, Ishak, Salman, & Sultan, 2023). Secondly, mixed-method studies combining quantitative and qualitative data could provide additional insight by recording the nuance of workers' perceptions towards leadership and appraisal systems. VOLUME 3, ISSUE 2, 2025 JCS 488 Journal for Current Sign Online ISSN (3006-1504) Print ISSN (3006-1490) Final Words: Emerging economies are rebuilding leadership paradigms to cope with perpetually changing sociopolitical dynamics and promote peaceful living and development (Iqbal et al., 2024). The ultimate integrated findings of the research confirm the significance of transformational leadership to underscore its positive impact on employee work engagement and job performance compared to transactional leadership. By verifying the mediating role of work engagement, the current study verifies the psychological mechanisms by which leadership styles have their influence, verifying claims in recent research confirming the trend towards employee-centred leadership models (Schaufeli, 2022; Bakker et al., 2022). Furthermore, the performance appraisal politics moderating effect demonstrates the strong requirement for organizational justice and open-ended measurement systems since recent empirical data has identified perceptions of fairness with leadership effectiveness and employee trust (Poon, 2021; Vigoda-Gadot, 2024). The research contributes in a new contextual way by concentrating on Pakistan's chemical and pharmaceutical industry-an under-explored but economically significant field-evolving leadership theory to emerging economy environments where political forces and institutional vacuums tend to complicate organizational behaviors (Iqbal et al., 2024). 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