Abstract
Language has been a key variable in extended gravity models focussed on foreign trade. This study extends previous research of common language network externalities by measuring its impact on bilateral trade, from the point of view of the ten most global languages in the world. We analyse a total of 58 countries in which the 10 global languages are predominant, according to the Ethnologue and the Calvet Barometer classifications. The economies sharing these languages represent 79% of the world's GDP. Our findings provide evidence that language commonality has a significant impact on bilateral trade, albeit lower that than the hitherto more researched effect of geographic distance.
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