This paper finds that the estimates of Armington elasticities (the elasticity of substitution between groups of products identified by country of origin) obtained from multilateral trade data can differ from those obtained from bilateral trade data. In particular, the former tends to be higher...

The Direction of Trade Statistics Online service provides data on the value of merchandise exports and imports between each country and all its trading partners. The database includes: total bilateral and multilateral exports and imports aggregated at national or regional group level; data from...