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. 2021 Sep 3;18(17):9323. doi: 10.3390/ijerph18179323

Table 1.

Variable definitions.

Variables Abbreviation Definition Source
Labor Labor Labor force (millions of workers) WDI
Ecological Footprint EE Measured by the sum total of croplands, forest, fishing, grazing, CO2 emissions, and infrastructure footprints GFN
Fixed assets FA Millions of US dollars WDI
Gross Domestic Product GDP Millions of US dollars WDI
CO2 emissions CO2 Metric tons WDI
Human development index HDI - GFN
Economic growth (per capita GDP) PGDP Constant 2010 US$ WDI
Renewable energy consumption REC Percentage (%) of total final energy WDI
Urbanization Urb Urban population (% of total population) WDI
Trade openness TO Trade (% of GDP) WDI
Foreign direct investment FDI Foreign direct investment, net inflows (% of GDP) WDI
Financial development FD Domestic credit to the private sector (% of GDP) WDI
Industrial structure IS Industry value added (% of GDP) WDI

Note: WDI and GFN represent the World Development Indicators [67] and Global Footprint Networks [68], respectively.