| variable | indicators | construction | source |
| lnfdi | OFDI total scale | ln(ofdi) | China Global Investment Tracker |
| lnifdi | intensive margin | ln(average ofdi) | |
| exfdi1 | extensive margin | the number of industries | |
| exfdi2 | extensive margin | the number of enterprises | |
| cor | corruption |
| Transparency International |
| coc2 | square of corruption | square of | |
| lnmar | market size | ln(host country GDP) | World Bank database |
| lnlab | labor cost | ln(host country per capita GDP) | |
| ggdp | economic potential | GDP growth rate of host country | |
| open | trade openness | (export + import)/host country GDP | |
| res | resource endowment | total resource rent of the host country |