<human>:  I need help understanding the source of the gender wage gap.
<bot>: The gender wage gap is the difference in wages between men and women for performing the same work. There are many sources for the wage gap, including gender bias, differences in occupation and industry, education level, experience, geographical region, and discrimination. As research has demonstrated, many of these factors can contribute to the wage gap and they can vary across different countries, industries, and professions. It is important to analyze the evidence in order to gain a better understanding of the root cause of the gender wage gap.