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The Official Journal of the Pan-Pacific Association of Input-Output Studies (PAPAIOS)

Table 5 Variable description

From: The trade policy effect in international trade: case of Pakistan

VariableDefinitionSource
EXPExports of goods and services (US)The World Integrated Trade Solution (WITS)
IMPImports of goods and services (US)The World Integrated Trade Solution (WITS)
GDPGross domestic product in current prices (USD)World Bank’s World Development Indicators (WDI)
POPPopulationWorld Bank’s World Development Indicators (WDI)
DISTBilateral distanceCEPII GeoDist database
NTBNon-tariff barriersThe World Integrated Trade Solution (WITS)
EPSEnvironmental policy stringencyOECD website
COSTEntry costsThe World Development Indicators
FTA0 = non-free trade agreementWTO website
(Dummy)1 = free trade agreement 
CL0 = non-common languageCEPII GeoDist database
(Dummy)1 = common language 
CB0 = non-common borderCEPII GeoDist database
(Dummy)1 = common border