| Variables | Definitions | Formula | Source |
| TXP | Tax revenue on the GDP | Tax revenue/GDP | CBWAS |
| GDPCAP | Logarithm of GDP per capita | Log (GDP/inhabitant) | WDI |
| DOPEN | The degree of openness | (Import + Export)/GDP | WDI |
| AVGRI | Agricultural added value in GDP | AV Agricultural/GDP | WDI |
| M2/GDP | Money supply relative to GDP | M2/PIB | WDI |