Quantitative Analysis of Global Economic Inequality after the 2008 Financial Crisis: A Mathematical Modeling Approach Using Multiple Linear Regression

This study explores how globalization affects economic inequality across social classes through transnational economic interactions by a quantitative analysis and case studies. A multivariate linear regression model is constructed based on World Bank data after the 2008 financial crisis. The results show that export price levels(log(pl_x)) and capital prices(log(pl_k)) significantly increase income inequality, while consumer prices(log(pl_c)) and share of labor income(labsh) have a suppressive effect. The study found that domestic policies(such as the high welfare system in Northern Europe) can partially offset the negative impact of globalization, but the model has limited explanatory power for Latin American and African countries. The study advocates addressing the challenge of inequality under globalization through tax reform, strengthening social security and industrial diversification policies.