Model (a) variables, measurements and sources
| Variable types | Variable | Measure | Source |
|---|---|---|---|
| Independent variable | FDI | FDI from home country A to host country B | UNCTAD |
| Dependent variables | CRB | Climate Risk Index of host country B | Germanwatch |
| D | Climate Risk Distance, Climate Risk Index of host country B minus Climate Risk Index of home country A | Germanwatch | |
| D1 (Climate Risk Index of host country B is lower) | Climate Risk Distance (Climate Risk Index of host country B is lower) | Germanwatch | |
| D2 (Climate Risk Index of host country B is higher) | Climate Risk Distance (Climate Risk Index of host country B is higher) | Germanwatch | |
| Control variables | GDP | Natural logarithm of host country B’s GDP | IMF |
| ADIST | A comprehensive index of whether the two countries formerly had colonial relations, the proportion of people who speak the same language and have the same religion, and whether they share a legal system. The larger the index, the greater the distance | Berry et al. (2010) | |
| GDIST | Geographical distance between the political centers of the two countries (km) | CEPII | |
| COME | Whether the ethnic origins of the two countries are the same (it is 1 if they are same, otherwise it is 0) | CEPII | |
| HDI | An index that comprehensively measures GDP per capita, education and life expectancy per capita. From low to high (0–100) | United Nations | |
| EFI | An index reflecting the degree of freedom of a country’s fiscal, trade and monetary policies. Not free to free (0–100) | Heritage Foundation |
| Variable types | Variable | Measure | Source |
|---|---|---|---|
| Independent variable | FDI | FDI from home country A to host country B | UNCTAD |
| Dependent variables | CRB | Climate Risk Index of host country B | Germanwatch |
| D | Climate Risk Distance, Climate Risk Index of host country B minus Climate Risk Index of home country A | Germanwatch | |
| D1 (Climate Risk Index of host country B is lower) | Climate Risk Distance (Climate Risk Index of host country B is lower) | Germanwatch | |
| D2 (Climate Risk Index of host country B is higher) | Climate Risk Distance (Climate Risk Index of host country B is higher) | Germanwatch | |
| Control variables | GDP | Natural logarithm of host country B’s GDP | IMF |
| ADIST | A comprehensive index of whether the two countries formerly had colonial relations, the proportion of people who speak the same language and have the same religion, and whether they share a legal system. The larger the index, the greater the distance | ||
| GDIST | Geographical distance between the political centers of the two countries (km) | CEPII | |
| COME | Whether the ethnic origins of the two countries are the same (it is 1 if they are same, otherwise it is 0) | CEPII | |
| HDI | An index that comprehensively measures GDP per capita, education and life expectancy per capita. From low to high (0–100) | United Nations | |
| EFI | An index reflecting the degree of freedom of a country’s fiscal, trade and monetary policies. Not free to free (0–100) | Heritage Foundation |
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