We develop a test for discrimination and apply it to analyze the change in income distributions between female and male. We then classify our data into married and single groups to trace the sources of income differences between female and male from 2005 to 2015.

With Michael Hoy, our researcher, Rachel Huang, published a paper in the Journal of Economic Theory on a new measure for income discrimination in 2017. On basis of this theoretic work, two of our researchers, Rachel Huang and Yu-Chin Hsu, further develop a new test for income discrimination. This new technology could enhance the application of research in income discrimination.

On basis income distributions from 2005 to 2015 in Taiwan, we find that differences of income distributions between male and female in the married group could be attributed to “marriage effect” which is an internal decision between husband and wife. On the other hand, we find that differences of income distributions between male and female in the single group could be attributed to “industry effect” which is a choice for career long before they get into job market.

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