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. Author manuscript; available in PMC: 2016 Aug 1.
Published in final edited form as: Econ J (London). 2015 Aug 18;125(586):F49–F81. doi: 10.1111/ecoj.12231

Table 1.

Descriptive statistics, definitions and sources

VARIABLES Definition Source Obs Mean Sd Min Max
Ln Emigration Rate Ln(migration inflow from i to j per source population) Own data collection, see Tables A1 and A3 100519 −5.02481 2.5311 −14.041 4.7055
Flowij migration inflow from i to j Own data collection, see Tables A1 and A3 102472 1077 6874 0 946167
Ln Stock of Migrants_t-1 Ln(foreign population stock from i in j per source population) t-1 Own data collection,, see Tables A2 and A4 77192 −3.1663 2.8741 −12.217 6.5749
Stockij foreign population stock from i in j Own data collection,, see Tables A2 and A4 82277 18922 169793 0 12100000
Linguistic Proximity Linguistic Proximity index between i and j countries using their main official language. Own calculation based on Ethnologue, see Data section 215040 .139397 .24967 0 1
Linguistic Proximity All Linguistic Proximity index set at the maximum proxi my between two countries using any of their official
languages
Own calculation based on Ethnologue, see Data section 215040 .25353 .32499 0 1
Linguistic Proximity Major Linguistic Proximity index between i and j countries using language spoken by majority Own calculation based on Ethnologue, see Data section 215040 .08262 .19175 0 1
Dyen Dyen Linguistic Proximity between i and j countries using their main official language based on the
similarity of samples of words from each language
Dyen et al.(1992) 100608 414.3834 277.7419 110.6 1000
Dyen All Dyen Linguistic Proximity set at the maximum proximity between two countries using any of their official
languages
Dyen et al.(1992) 147264 490.5674 299.5442 112.8 1000
Dyen Major Dyen Linguistic Proximity between i and j countries using language spoken by majority Dyen et al.(1992) 66976 371.2698 260.8502 110.6 1000
Levenshtein Levenshtein linguistic distance between i and j countries using their main official language Max Planck Institute for Evolutionary Anthropology 208320 87.63829 23.59133 0 106.39
Levenshtein All Levenshtein linguistic distance set at the maximum proximity between two countries using any of their
official languages
Max Planck Institute for Evolutionary Anthropology 212160 78.29216 30.35295 0 106.39
Levenshtein Major Levenshtein linguistic distance between i and j countries using language spoken by majority Max Planck Institute for Evolutionary Anthropology 194880 91.60195 18.60136 0 106.4
Common Language A dummy for common language between i and j countries Own calculation based on Ethnologue, see Data section 215040 .0516369 .22129 0 1
Ln Destination GDPperCap_t-1 Ln GDP per capita, PPP (constant 2005 international $) in destination j, t-1 WDI, World Bank 196224 10.0149 .43263 8.6204 11.2134
Ln Origin GDPperCap_t-1 Ln GDP per capita, PPP (const 2005 international $) in origin i, t-1 WDI, World Bank 151770 8.5001 1.2706 4.9418 11.7221
Ln Origin GDPperCap_t-1 sq Ln GDP per capita, PPP (const 2005 intern $) in origin i squared, t-1 WDI, World Bank 151770 73.8664 21.5499 24.4212 137.4071
Ln Public Expenditure Ln Public social expenditure as a percentage of GDP in destination j, t-1 OECD SOCX Database 184576 2.8722 .4834 .5306 3.5752
Ln Destination UnemplRate_t-1 Ln Unemployment, total (% of total labor force) in destination j, t-1 WDI, World Bank 173152 1.8385 .5532 .4055 3.1739
lnsubUj1 Unemployment rate in j, t-1, substituted by country average in case of missing values WDI, World Bank and own calculation 208320 1.8538 .5436 .4055 3.1739
Ujmissing A dummy indicating a missing value for unemployment rate in j WDI, World Bank and own calculation 215040 .1948 .3960 0 1
Ln Origin UnemplRate_t-1 Ln Unemployment, total (% of total labor force) in origin i, t-1 WDI, World Bank 74460 1.9603 .7094 −1.6094 4.0860
lnsubUi1 Unemployment rate in i, t-1, substituted by country average in case of missing values WDI, World Bank and own calculation 174840 1.9796 .8117 −1.6094 4.0860
Uimissing A dummy indicating a missing value for unemployment rate in i WDI, World Bank and own calculation 215040 .6537 .4758 0 1
Ln Population Ratio, t-1 Ln Share of population in destination j per population in country i, t-1 WDI, World Bank 196740 8.4127 2.8426 −3.0912 17.2586
Ln Distance in km Ln Distance between capitals of destination j and origin i in km Own extension of CEPII 212128 8.5916 .8880 2.2741 9.8839
Neighboring Dummy Dummy variable for neighboring countries Own extension of CEPII 215040 .0183 .1341 0 1
Historical Past Dummy Dummy variable for countries ever in colonial relationship Own extension of Rose (2004) 215040 .0202 .1408 0 1
Ln Origin Political Rights_t-1 Ln of Freedom House Index – Political Rights in origin i Freedom in the World Scores 167880 1.0700 .7461 0 1.9459
Ln Origin Civil Rights_t-1 Ln of Freedom House Index – Civil Liberties in origin i Freedom in the World Scores 167880 1.1379 .6456 0 1.9459
Dominant Genetic Distance Dominant genetic distance between plurality groups, current match Spolaore and Waciarg (2009) 207360 933.9762 720.1979 0 2760
Weighted Genetic Distance Weighted genetic distance, current match Spolaore and Waciarg (2009) 184512 941.7764 651.6594 0 2777.695