Macroeconomics, sharia, and economic inequality in The Organization of Islamic Cooperation (OIC): An empirical study

This study aimed to determine the factors that influence the level of income inequality in member countries of the Organization of Islamic Cooperation (OC). The research period used was from 2012 to 2021, using the System Generalized Method of Moment (GMM) analysis tool. The variables used consist of the Gini ratio (proxy of income inequality), economic growth, Foreign Direct Investment (FDI), inflation, the average length of schooling (human capital proxy), and corruption perception index (sharia proxy). The results showed that sharia, human, and inflation variables had a negative effect, while economic growth and FDI had a positive and significant effect on income inequality in OIC countries. These results show that in addition to economic factors and human capital, sharia elements cannot be released in overcoming income inequality in OIC countries. Sharia is a driving factor in a more even distribution of income.