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On the gravity equation of trade: a case of Germany

Abstract

Gravity models (equations) of trade belong among the most successful empirical tools in the modern economics since their first economic applications in the yearly 1960s. They assume that bilateral trade is directly proportional to “economic sizes” (usually described in terms of GDP or income) of both trading partners and inversely proportional to their distance. The aim of this study was to examine Germany’s latest (2012) yearly aggregate exports to its major international partners by a gravity equation without and with selected trade frictions including a geographical adjacency (the so called border effect), an influence of the same or different currency (Euro), and a location in the Schengen Area, the zone of a free movement of persons. Gravity models both without and with selected trade frictions fitted the data well, while the model with frictions performed significantly better. The adjacency was found the most important single trade friction, the location in the Schengen Area appeared to be the least important friction (but it was still statistically significant). Other feasible trade frictions, such as border length, a location in Europe or democracy index were examined too, but their effect on the trade was rather negligible. A possible explanation of the border effect, based on information deficiency, is included in the study as well. Furthermore, it was observed that yearly Germany’s exports data are susceptible to large year-to-year fluctuations especially for countries with low imports. Therefore, using averaged data over five or ten years long periods might be more appropriate.

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On the gravity equation of trade: a case of Germany

Author: Mazurek, Jiří
Publisher: Technická Univerzita v Liberci
Year: 2016
Source: https://dspace.tul.cz/bitstreams/6fbcc14f-13a0-4d6c-ad4a-3cf6bf2c5d5b/download
20 2016, XIX, 3
Ekonomie
20 DOI: 10.15240/ ul/001/2016-3-002
In oduc ion
The g a i y model (o equa ion) o in e na ional
ade is an economic analogy o New on’s
Law o g a i y. The economic e sion o his
law assumes ha in e na ional bila e al ade
is di ec ly p opo ional o ‘sizes’ o ading
economies, and indi ec ly p opo ional o
hei dis ance. G a i y was in oduced in o
economic heo y by Tinbe gen (1962), and
la e his pionee wo k was ollowed by many
o he s udies, see e.g. Ande son (1979; 2010),
Be gs and (1985), Dea do (1998), Ande son
and an Wincoop (2003), Helpman e al. (2008),
o Be gs and and Egge (2011). A concise
e iew o g a i y app oach can be ound e.g. in
Ande son (2010) o Sal a ici (2014).
Theo e ical explana ion o he g a i y
equa ion o agg ega ed o disagg ega ed ade
can be ound e.g. in Ande son (1979) o Chaney
(2011). T ade in a eal wo ld is in l uenced no
only by economic size and dis ance, bu also
by ade ‘ ic ions’ ( ade cos s o ade ba ie s)
such as bo de s among coun ies, a di e en
language and cu ency, colonial ies, ee ade
ag eemen s, e c., hese addi ional ac o s we e
inco po a ed in o g a i y models as well, see
e.g. Dea do (1998), Baie and Be gs and
(2009), Ande son (2010), Be gs and and
Egge (2011) o Sal a ici (2014).
G a i y models heo e ically explain he ole
o an economic size in bila e al ade l ows a any
scale (coun ies, egions, e c.); hough he ole o
a dis ance is no well unde s ood ye , see Disdie
and Head (2008). Mo eo e , g a i y applies
o o he socio-economic phenomena such as
mig a ion o di ec o eign in es men s. Gene ally,
acco ding o Ande son (1979) o Chaney (2011),
g a i y models o ade can be conside ed he
mos success ul empi ical ools in economics.
The empi ical e idence o g a i y models
is a he s ong, as a ious s udies epo he
coe i cien o de e mina ion be ween 0.6 and
0.8. A me a-analysis o 1,467 es ima es in 103
pape s p o ided by Disdie and Head (2008)
ound 1

in ela ion (1) (see below).
Rema kably, he coe i cien γ has been s able
(and close o one) o mo e han one cen u y.
A heo e ical explana ion o his esul can be
ound e.g. in Chaney (2011).
G a i y model es ima ions a e usually
ca ied ou o c oss-sec ional o panel da a.
Howe e , coun ies all o e he wo ld o m
a e y he e ogeneous sample. The e a e
coun ies wi h cen u ies o indus ial adi ion
and expo ( he USA, he UK, Ge many, e c.),
coun ies ha expo agg essi ely in he las
decades (Japan, Ko ea, China, e c.), and
also a la ge numbe o de eloping coun ies
whose expo s a e limi ed o a icles such as
bananas o cocoa beans. Mo eo e , a ade
is a p oduc o pa icula human ac ion, and
people li ing unde di e en condi ions and
egimes simply canno ac in a simila way.
The e o e, one should no expec in e na ional
ade o be uni e sally desc ibed o explained
by one equa ion, model o a o mula. To mix
such di e en ade pa ne s while looking o
a gene al pa e n (as in physics) makes li le
sense in economics. Hence, a mo e sensible
app oach migh be he use o mo e homogenous
se s o coun ies, such as de eloped (OECD)
coun ies, La in-Ame ican coun ies, e c.
This a o emen ioned app oach is ollowed
in his pape , whe e he g a i y equa ion is
used o model agg ega e expo ’s sha es o
one coun y (Ge many) o i s ading pa ne s
(impo ing coun ies).
As he g a i y model is usually o mula ed
in a mul iplica i e o m, i is log- ans o med in o
a linea equa ion and coe i cien s o a model a e
es ima ed by an app op ia e eg ession me hod.
A p oblem o a co ec es ima ion o a g a i y
model is a b oadly discussed issue, see e.g.
Heckman (1979), Sil a and Ten ey o (2006),
ON THE GRAVITY EQUATION OF TRADE:
A CASE OF GERMANY
Jiří Mazu ek
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Ma ínez-Za zoso e al. (2007), Helpman e al.
(2008), Baie and Be gs and (2009), Egge
(2010), He e a and Baleix (2010) o He e a
(2013). Howe e , he e is no a consensus on
wha he mos app op ia e eg ession es ima ion
is in he case when assump ions o O dina y
Leas Squa es (OLS) me hod a e iola ed, in
pa icula , when a signi i can he e oscedas ici y
is p esen . Unde such ci cums ances he
Pseudo Poisson Maximum Likelihood (PPML)
me hod, he Nonlinea Leas Squa es (NLS)
me hod o he Feasible Gene alized Leas
Squa es (FGLS) me hods we e p oposed by
Sil a and Ten ey o (2006) o Ma ínez-Za zoso
e al. (2007). Ne e heless, i assump ions o
OLS a e sa is i ed, i is he BLUE (Bes Linea
Unbiased Es ima o ) me hod.
The aim o he a icle is o examine how he
agg ega ed g a i y models i he la es expo
da a o Ge many bo h wi hou and wi h ade
ic ions. Ge many was selec ed o his s udy
because i is he 3 d la ges wo ld expo e (behind
he USA and China), and i anks among he mos
de eloped coun ies o he wo ld. I is sui ably
loca ed in he middle o he con inen su ounded
by many ading pa ne s in di e en dis ances;
and las , bu no leas , he da a o Ge many can
be conside ed accu a e and eliable.
The pape is o ganized as ollows: in sec ion
1 Ge many’s expo is b ie l y discussed, in
sec ion 2 he da a is desc ibed, in sec ions 3
and 4 agg ega e g a i y models wi hou and wi h
ic ions a e p esen ed along wi h hei esul s.
Conclusions ollow a he end o he a icle.
1. Ge many’s Expo
Ge many belongs among coun ies wi h
a posi i e balance o in e na ional ade in he
long e m. In 2014, he balance (expo minus
impo ) eached 217 billion Eu os acco ding o
S a is isches Bundesam (2015b). Commodi y
s uc u e o expo is a he s able in he las
decade. The mos impo an expo i ems a e
anspo a ion (ca s, ca pa s, engines and
ae ial echnology), ins umen s o elec ical
enginee ing, elecommunica ions echnology,
o i ce echnology and machine y; see
S a is isches Bundesam (2015a). Figu e 1
p o ides mo e de ailed commodi y s uc u e o
expo in 2014.
The mos impo an ade pa ne s o
Ge many a e F ance, USA, UK, Ne he lands
and China (see also Appendix A). In 2014,
58% o Ge many’s expo wen o EU, 17%
o Asia, 12% o Ame icas, 10% o non-EU
Eu opean coun ies, 2% o A ica and he es
(0.3%) o Aus alia and Oceania acco ding o
S a is isches Bundesam (2015b).
Ge many is a ede al pa liamen a y epublic
consis ing o 16 cons i uen s a es. In 2014,
he s onges expo ing s a es we e Baden-
Wü embe g (16% o o al Ge many’s expo ),
No h Rhine-Wes phalia (15.9%), Ba a ia
(14.9%) and Lowe Saxony (6.9%). A ound 85%
o expo was a comple ed p oduc ion, 5% semi-
i nished p oduc ion, and a ound 1% accoun ed
o aw ma e ial. Mo e de ailed da a including
a s uc u e o expo by indi idual s a es can be
ound in S a is isches Bundesam (2015b).
Fig. 1: The commodi y s uc u e o Ge many expo in 2014 (in billion Eu os)
Sou ce: S a is isches Bundesam (2015a)
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2. Me hod and Da a
Ge many’s expo is examined ia agg ega e
g a i y equa ions wi h and wi hou ic ions.
These equa ions (models) a e in oduced and
desc ibed in de ail in he ollowing wo sec ions.
As g a i y equa ions ha e a mul iplica i e
o m, hey we e linea ized by he loga i hmic
ans o ma ion. Then, linea eg ession was
pe o med by he mos sui able es ima ion
me hod.
Fo he empi ical in es iga ion he ollowing
da a was used:
 Impo ing pa ne s’ sha es (in %) o
Ge many’s expo o he yea 2013 we e
ob ained om S a is isches Bundesam
(2014). The da a is p o ided in he o m
o a anking o ading pa ne s in he
descending o de . Fo his s udy he lis o
all coun ies was unca ed and includes 66
main pa ne s ( om F ance o Qa a ) wi h
an indi idual sha e o impo om Ge many
a leas equal o 0.10%, as he ela i e
e o o alues lowe han 0.10% would be
inapp op ia ely high (see a discussion a
he end o sec ion 4). These 66 coun ies
comp ise 97.6% o Ge many’s expo .
 Dis ances be ween Ge many and impo ing
coun ies (in kilome e s) we e ob ained
om a dis ance calcula o a Timeandda e
(2013). The dis ance be ween wo coun ies
was de i ned as an ai dis ance be ween
hei capi al ci ies.
 GDP (PPP) in billions USD o impo ing
coun ies we e e ie ed om he
In e na ional Mone a y Fund (2013).
 O he coun ies’ da a include hei cu ency,
a membe ship o Schengen a ea and an
exis ence o join bo de s wi h Ge many.
The dependen a iable in he models
was impo ing pa ne s’ sha es (in %), o he
a iables we e conside ed independen . All da a
is p o ided in Appendix A. I should be no ed
ha expo sha es and GDP (PPP in billion
dolla s) could be a subjec o la e e isions.
3. F ic ionless G a i y Model,
Resul s and Discussion
The s anda d g a i y model (equa ion) o
agg ega e in e na ional ade usually akes he
ollowing o m (Chaney, 2011):
ij
ij
ij
GDP GDP
Tk d



, (1)
whe e Tij is a ade om a coun y i o a coun y
j, GDPi deno es g oss domes ic p oduc , k is
a posi i e coe i cien , and dij is a geog aphic
dis ance o bo h coun ies.
Ande son (2010) assumes ha supply Yi
o a coun y i is a ac ed by a demand Ej o
a coun y j, whe e dij deno es a dis ance o
bo h coun ies, and p oposes he ollowing
ic ionless and agg ega e g a i y model
o ade:
2
iJ
ij
ij
YE
Td

(2)
Also, in some al e na i e g a i y models an
income pe capi a (along wi h a popula ion)
o coun ies is used ins ead o supply and
demand, and an e o e m is added on he igh
hand side o equa ions; see Ande son (1979):
ij i j i j ij ij
MYYNNdU
  

 (3)
In (3) ij
M is he dolla l ow o a gi en
good om a coun y i o a coun y j, i
Y and
j
Y
a e incomes in bo h coun ies, i
N and j
N
a e hei popula ions, and ij
U is a log-no mally
dis ibu ed e o e m wi h (ln ) 0
ij
EU.
In he las decades, mo e sophis ica ed
models o disagg ega ed goods and wi h ade
ic ions we e de eloped, see e.g. Ande son
(2010) o Sal a ici (2014).
In his pape he ollowing agg ega e
ic ionless g a i y model o Ge many’s expo
sha es is conside ed:


i
i
iDIST
GDP
kE 
(4)
In (4) i
E deno es a sha e o Ge many’s
expo (in %) o a coun y i,
i
GDP is a g oss
domes ic p oduc o an impo ing coun y i,
i
DIST is a dis ance be ween coun y i and
Ge many, and α, β, and k a e coe i cien s.
Rela ion (4) simply s a es ha an expo
ises when an impo ing coun y is close and/
o iche . I should be no ed ha i absolu e
alues o expo s (e.g. in billions o USD) we e
conside ed in (4) ins ead o ela i e expo s,
hen only he coe i cien k would change.
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Fo he eg ession analysis he ela ion (4)
is e o mula ed in he ollowing way:
jjj
E k GDP DIST

 
(5)
G a i y equa ion is ans o med
loga i hmically (all a iables a e posi i e) which
yields:
ln ln ln ln
jjj
E k GDP DIST

 
(6)
The co ela ion ma ix o a iables in he
model (6) is shown in Table 1. As i can be seen,
co ela ion coe i cien s we e no pa icula ly
high. Mul icollinea i y in he model (6) was
examined ia he Va iance In l a ion Fac o
(VIF), 2
1/(1 )
ii
VIF R
, whe e 2
i
R is he
p opo ion o a iance in he i- h independen
a iable associa ed wi h o he independen
a iables in a model, see O’B ian (2007).
A ule o humb s a es ha o alues o VIF
la ge han 10 mul icollinea i y o a model can
be conside ed a se ious p oblem. In he model
(6) VIF o bo h explana o y a iables was only
a ound 1.3.
Fo he eg ession model (6) he da a
om Appendix A was used. The eg ession
was pe o med ia s a is ical so wa e G e l.
Residuals we e examined o exogenei y,
no mali y and he e oscedas ici y. All assump ions
o OLS we e sa is i ed wi h an excep ion
o he e oscedas ici y associa ed wi h he
loga i hm o GDP, whe e he null hypo hesis
(homoscedas ici y) could be ejec ed by Whi e’s
es a p = 0.04 le el. The e o e, G e l’s buil -
in OLS wi h he co ec ed he e oscedas ici y
me hod (which inco po a es weigh ed leas
squa es me hod) was used o he es ima ion.
Resul s a e epo ed in Table 2.
As i can be seen om Table 2, bo h
eg esso s (logs o GDP and dis ance) we e
ound signi i can a 0.01 le el. As expec ed,
eg ession coe i cien o loga i hm o dis ance
is nega i e, and he coe i cien o loga i hm o
GDP is posi i e, bo h coe i cien s a e close o 1,
which is in acco d wi h o he s udies’ i ndings.
The adjus ed coe i cien o de e mina ion
R2 = 0.742, which is wi hin a ange o 0.6-0.8
was ound in o he simila s udies as well.
Ln(expo ) Ln(Dis ) Ln(GDP)
Ln(expo ) 1 -0.291 0.525
Ln(Dis ) 1 0.506
Ln(GDP) 1
Sou ce: own
Reg esso /me hod OLS wi h c. h.
Cons . 1.030 (0.554)*
Ln(Dis ) -0.903 (0.081)***
Ln(GDP) 0.896 (0.071)***
No. o obse . 66
Sou ce: own
No es: S anda d e o s in b acke s. * signi i can a 10%; ** signi i can a 5%; *** signi i can a 1%
Tab. 1: The co ela ion ma ix o a iables om he model (6)
Tab. 2: The ic ionless g a i y model – es ima ion esul s
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4. G a i y Model wi h F ic ions,
Resul s and Discussion
F ic ions o any kind (bo de s, a di e en
language o cu ency, colonial ies, legisla i e,
cul u e, eligion, e c.), which in l uence eal ade,
can be inco po a ed in o he g a i y models as
well. In his pape he ollowing ade ic ions as
explana o y a iables we e examined:
Adjacency (A): he exis ence o na ional
bo de s is conside ed one o he mos
impo an ic ions in in e na ional ade.
Acco ding o Ande son (2010), c oss-bo de
ade is ypically educed by a ac o o 1/20
o 1/3 o i s po en ial alue. Howe e , when
a ade is ca ied ou be ween coun ies
wi hou common bo de , i is educed e en
mo e signi i can ly.
Cu ency (C): di e en cu ency migh
diminish ade olumes due o exchange
a es unce ain y; i may equi e addi ional
ansac ion cos s as well.
Loca ion in he Schengen a ea (LISA):
he Schengen a ea, es ablished in 1995,
abolished in e nal bo de con ols and
allowed ee ans e o people wi hin he
a ea. This could a ec ade olumes wi hin
he Schengen a o ably.
All hese ade ic ion a iables a e dummy
(bina y) a iables wi h alues 0 o 1, see
Table 3. Also se e al o he ade ic ions we e
conside ed a he beginning o he s udy, such as
democ acy index o impo ing coun ies, leng h
o common bo de s wi h Ge many, geog aphic
loca ion o impo ing coun ies (no jus hei
dis ance), o he ac whe he anspo a ion
o goods is managed on a land o a sea, bu
p elimina y esul s showed hese a iables
we e no s a is ically signi i can in he examined
models, o we e highly co ela ed wi h o he
independen a iables, so hey we e elimina ed
om he model. Ne e heless, hough only h ee
a iables associa ed wi h ade ic ions we e
le in he model, i s explana o y powe was e y
high (see esul s a he end o his sec ion).
The ic ion g a i y model has he ollowing
o m:
(%)
iii
E k GDP DIST

  
()
ii i
EXP C A LISA
 


(7)
Log- ans o m o (7) yields:
l
n( ) ln ln ln
iii
E k GDP DIST

  
ii i
CALISA

 (8)
The co ela ion ma ix o all eg esso s in
(8) is p o ided in Table 4. Va iance In l a ion
Fac o (VIF) o all explana o y a iables was
ound lowe han 4, wi h a maximum alue o
3.24 o LISA. The e o e, mul icollinea i y o he
model (8) did no cons i u e a p oblem.
Again, assump ions ega ding he use
o OLS we e examined, wi h he esul OLS
is an app op ia e es ima ion me hod wi h an
excep ion o he e oscedas ici y o ln(GDP), so
OLS wi h co ec ed he e oscedas ici y in G e l
was pe o med again. Es ima ion esul s a e
shown in Table 5.
All a iables associa ed wi h ade ic ions
we e ound s a is ically signi i can , hough only
adjacency was ound s a is ically signi i can a
0.01 le el. Mo eo e , eg ession coe i cien s
o all ic ion a iables we e ound nega i e as
expec ed. Acco ding o coe i cien s’ alues,
he mos impo an ade ic ion is adjacency
– coun ies no bo de ing wi h Ge many impo
signi i can ly less (by a ac o o 1.6) han
Ge many’s neighbo s. Adjus ed coe i cien o
de e mina ion o he model is e y high, R2 = 0.92,
which indica es he model is app op ia e and
possess high explana ion powe .
T ade ic ion Ac onym Values
The same cu ency C yes: 0, no: 1
Sha ed bo de s wi h Ge many A yes: 0, no: 1
Loca ion in he Schengen a ea LISA yes: 0, no: 1
Sou ce: own
Tab. 3: Selec ed ade ic ions
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A guably, he mos impo an de e minan s
o expo olumes (o sha es) a e dis ance
be ween ading coun ies and a alue o GDP
o impo ing coun ies (coun ies’ weal h).
Howe e , when expo is low, in l uence o o he
ac o s may be no negligible. Fo example,
one la ge go e nmen o p i a e con ac (such
as opening o Bosch’s subsidia y in Kenya
du ing 2014), may change he expo da a
subs an ially. This can be easily illus a ed by
he S a is ische Bundesam (2013; 2014) da a
on Ge many’s expo s om 2012 and 2013.
The change in expo olumes be ween yea s
2012 and 2013 o he op en impo e s om
Ge many ( om F ance o Belgium) was abou
2% on a e age, bu o coun ies anked om
he 101 h o he 110 h place ( om El Sal ado
o Zambia) his yea - o-yea change amoun ed
o 46% on a e age. A ques ion a ises, whe he
such da a can be conside ed mo e han jus
a noise.
In his s udy only he da a o op 66 coun ies
wi h a leas 0.10% sha e o Ge many’s expo
was examined, bu i s o al sha e o expo is
97.6%. Remaining 173 coun ies sum up o
only 2.4% o Ge many’s expo , bu , i used,
hey would o m a majo i y o he da ase . Tha
is he main eason why hey we e le ou o his
s udy. Howe e , i a e aged da a o e some
longe pe iod ( i e o en yea s) demons a e
mo e s abili y, hen i migh be possible o
include hese coun ies as well.
Conclusions
In his s udy Ge many’s la es agg ega e expo
sha es wi h he use o a g a i y equa ion
wi hou and wi h ade ic ions we e examined.
This is a sligh ly di e en app oach om
a s anda d me hodology whe e ade olumes
a e s udied wi h he use o c oss-sec ional o
panel da a. Also, only da a o coun ies wi h
impo sha es om Ge many exceeding 0.10%
we e employed, as coun ies wi h lowe ade
olumes a e suscep ible o la ge yea - o-
yea l uc ua ions, which a ec he es ima ion
by g a i y equa ion nega i ely. The use o
a e aged da a o e longe pe iods migh be
mo e app op ia e as elimina ion o smoo hing
Ln(DIST) Ln(GDP) A C LISA
Ln(DIST) 1 0.506 0.545 0.493 0.726
Ln(GDP) 1 0.077 0.239 0.364
A 1 0.334 0.562
C 1 0.655
LISA 1
Sou ce: own
Reg esso s OLS wi h c. h.
cons . 0.416 (0.494)
Ln(Dis ) -0.695 (0.088)***
Ln(GDP) 0.877 (0.040)***
A -0.495 (0.135)***
C -0.351 (0.135)**
LISA -0.328 (0.171)*
No. o obse . 66
Sou ce: own
No es: S anda d e o s in b acke s. * signi i can a 10%; ** signi i can a 5%; *** signi i can a 1%
Tab. 4: Co ela ion o explana o y a iables in he model (8)
Tab. 5: Es ima ion esul s o he model (8)
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26 2016, XIX, 3
Ekonomie
26
o da a l uc ua ions may esul in much be e
s a is ical pe o mance o g a i y models in
gene al.
One o main i ndings o his s udy is ha
he ic ionless g a i y model is e y success ul
in i ing he da a wi h adjus ed coe i cien o
de e mina ion R2 equal o 0.74. As expec ed,
expo sha es we e ound ( oughly) di ec ly
p opo ional o a GDP o an impo e and
nega i ely p opo ional o impo e s’ dis ance.
Mo e in e es ing i ndings conce n he
g a i y model wi h ic ions, namely adjacency,
cu ency and loca ion in he Schengen a ea.
This model i ed he da a e en be e han
ic ionless model, wi h he adjus ed coe i cien
o de e mina ion R2 as high as 0.92. All ic ions
we e ound s a is ically signi i can a 0.10 le el,
and hei eg ession coe i cien s we e ound
nega i e, which means hey we e ac o s
con ibu ing o he ade dec ease indeed, wi h
(no )adjacency as he mos impo an ade
ba ie i sel .
The bo de e ec , which diminishes ade
subs an ially e en in cases whe e no bo de s
a e physically p esen (as in he EU), is s ill
conside ed puzzling, see Ande son (2010). One
possible explana ion, somewha o e looked in
he li e a u e, migh es in in o ma ion de i ciency.
To ade, in o ma ion abou demand and supply
o pa icula goods mus be a ailable o bo h
po en ial ade pa ne s. Bu subjec s o ade
(Ge many’s expo e s, o example) a e be e
in o med abou si ua ion a hei home ma ke in
Ge many han abou he si ua ion a neighbo ing
ma ke s ( o example in Belgium), because hey
p ima ily acqui e in o ma ion h ough home
Ge man media (TV, newspape s, In e ne , e c.,
and also h ough pe sonal con ac ). Howe e ,
nea bo de s wi h Belgium Ge man expo e s
can acqui e in o ma ion om Belgian sou ces,
and hus could be, a leas pa ially, in o med
abou i s ma ke . This in o ma ion acquisi ion
is e en mo e educed when he e is no bo de
be ween bo h coun ies (no adjacency), as
in o ma ion can be sha ed only indi ec ly (by
In e ne , sa elli e TV) o by (no so o en) pe sonal
con ac . Tha is why ade wi h a o eign subjec
is less likely.
This pape was suppo ed by he Minis y
o Educa ion, You h and Spo s Czech Republic
wi hin he Ins i u ional Suppo o Long- e m
De elopmen o a Resea ch O ganiza ion in
2015.
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Mg . Jiří Mazu ek, Ph.D.
Silesian Uni e si y in Opa a
School o Business Adminis a ion in Ka iná
Depa men o Ma hema ical Me hods
in Economics
[email p o ec ed]
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28 2016, XIX, 3
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28
Coun y Expo sha e (%) Dis . (km) GDP PPP
(bil. USD) C LISA A
001 F ance 9.146 879 2,534.5 0 0 0
002 Uni ed S a es 8.174 6,727 16,768.1 1 1 1
003 Uni ed Kingdom 6.906 932 2,320.4 1 1 1
004 Ne he lands 6.492 577 780.3 0 0 0
005 China 6.121 7,377 16,149.1 1 1 1
006 Aus ia 5.148 523 376.7 0 0 0
007 I aly 4.871 1,183 2,035.4 0 0 1
008 Swi ze land 4.293 752 432.0 1 0 0
009 Poland 3.885 520 896.8 1 0 0
010 Belgium 3.882 651 455.0 0 0 0
011 Russian Fede a ion 3.275 1,616 3,491.6 1 1 1
012 Spain 2.868 1,870 1,488.8 0 0 1
013 Czech Republic 2.843 280 287.6 1 0 0
014 Tu key 1.955 2,042 1,443.5 1 1 1
015 Sweden 1.894 813 418.2 1 0 1
016 Hunga y 1.601 691 229.6 1 0 1
017 Japan 1.562 8,940 4,667.6 1 1 1
018 Denma k 1.449 356 240.9 1 0 0
019 Ko ea Rep. 1.322 8,150 1,697.0 1 1 1
020 B azil 1.033 9,573 3,012.8 1 1 1
021 Slo akia 0.973 554 144.0 0 0 1
022 Uni ed A ab Emi a es 0.906 4,641 570.6 1 1 1
023 Romania 0.882 1,297 371.2 1 1 1
024 Saudi A abia 0.844 4,175 1,553.1 1 1 1
025 India 0.837 5,793 6,776.0 1 1 1
026 Mexico 0.818 9,741 2,058.9 1 1 1
027 Canada 0.807 6,146 1,518.4 1 1 1
028 Aus alia 0.785 16,062 1,052.6 1 1 1
029 Sou h A ica 0.780 8,789 662.6 1 1 1
030 No way 0.750 840 328.0 1 0 1
031 Finland 0.747 1,109 218.3 0 0 1
032 Po ugal 0.582 2,315 268.8 0 0 1
033 Singapo e 0.577 9,928 425.3 1 1 1
034 Taiwan 0.538 8,971 970.9 1 1 1
035 Hong Kong 0.514 8,767 382.5 1 1 1
036 Luxembou g 0.507 601 48.5 0 0 0
037 I eland 0.500 1,320 213.3 0 1 1
038 Uk aine 0.492 1,210 392.5 1 1 1
Appendix A: The da a o he g a i y model wi h ic ions – Pa 1
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