| Variable | Description | Source | 
 
   
   | lgdpimp | Logarithm of the GDP level in the host country | http://data.worldbank.org/indicator/NY.GDP.MKTP.CD?view=chart | 
 
   
   | lgdpexp | Logarithm of the GDP level in the home country | http://data.worldbank.org/indicator/NY.GDP.MKTP.CD?view=chart | 
 
   
   | Ldist | Logarithm of the distance between the home and host countries | Database Silva, S., Tenreyro, J. | 
 
   
   | lremotimp | Logarithm of the host country remoteness | Database Silva, S., Tenreyro, J. | 
 
   
   | lremotexp | Logarithm of the home country remoteness | Database Silva, S., Tenreyro, J. | 
 
   
   | Comlang | Common language (dummy) | Database Silva, S., Tenreyro, J. | 
 
   
   | RIA | Regional Integration Agreement between the host and home countries (dummy) | Made by author | 
 
   
   | lecfreed | Logarithm of the Index of Economic Freedom | http://www.heritage.org/index/about |