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Abstract Few studies have explored the impact of foreign direct investment (FDI), trade openness, economic growth, education, and inflation influence income inequality in developed economies. This study examines these factors in Greece using the autoregressive distributed lag (ARDL) method. The novelty of this research lies in its application of three distinct measures of income inequality: (a) the Gini index, (b) the income share of the poorest 20% quantile, and (c) the income share of the top 20% quantile. The results have significant theoretical and policy implications. First, GDP per capita elasticities strongly support Kuznets’ theory. Second, while FDI does not significantly affect on income distribution in the short term, it predominantly improves income distribution at the upper and median levels in the long term while reducing the income share of the lowest 20% quantile. Third, trade openness initially increases income inequality but primarily improves distribution at the lower and median levels over time. Fourth, although education initially exacerbates economic inequality, it significantly supports lower and median income levels in the long run. Finally, inflation negatively impacts income equality in both the medium and long term, boosting the earnings of the top 20% quantile over time. These findings suggest that governments should address income inequality by focusing on sustainable growth, improving education, implementing reforms to attract FDI, boosting exports, and adopting measures to control inflation.
Tsitouras et al. (Thu,) studied this question.