| Description | Expected impact on IG_VIIT(*) | Expected impact on IG_HIIT(*) | Source |
SIZE | Average size calculated as average between Italy GDP and partner country k GDP in industry j | −/+ | + | OECD: STAN |
DIFRD | Differences in technologic intensity between countries calculated as difference in absolute value between the percentage of R & D on GDP in Italy and corresponding partner countries k in industry j | + | − | OECD: ANBERD |
DIFYP | Differences in absolute value in GDP per worker between Italy and partner country k in industry j | +/− | − | OECD: STAN |
DIFY | Differences in absolute value in GDP between Italy and partner country k in industry j | +/− | − | OECD: STAN |
DIST | Geographical distance in km between Rome and the partner country’s capital | − | − | Jon Haveman’s international trade data |