The impact of financial crises on the relationship between imports, exports, and consumption-based CO2 emissions: Do country income levels matter?

Unlike most extant research that uses production-based CO2 emissions to examine the links between exports/imports and CO2 emissions, in this paper we use consumption-based CO2 emissions to examine the impact of the 2008 global financial crises on the stated relationship for a select sample of countries arranged by income levels. Using the common correlated effects estimator methodology and annual data over the 1990–2019 period, we examine the impact of the 2008 crisis on the stated relationship for a group of high-income, upper middle-income, and lower middle-income countries. Our results suggest that the global financial crisis significantly altered the high-income and lower middle-income countries in terms of the relationship between exports and pollution. The crisis also impacted the lower middle-income countries in terms of the imports/pollution relationship. These findings suggest that a country’s income level is important when considering the relationship between exports/imports and pollution following a crisis.