Using multiple measures of income inequality and political party alternation for US states we examine panel data from 1971 to 2015 to test whether income inequality affects party alternation for governors. We test various measures of party alternation at the state level. The evidence suggests that income inequality increases party alternation and has a nonlinear relationship with gubernatorial-party alternation. Income inequality backlash is more evident for Republicans and favors Democrats when inequality is high, with the opposite being true. Results vary with the choice of inequality and party alternation measures, which suggests income inequality for states should be further examined.

中文翻译：

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收入不平等和政党更替：来自美国州级的证据

我们使用美国各州收入不平等和政党更替的多种衡量标准，研究了 1971 年至 2015 年的面板数据，以检验收入不平等是否会影响州长的政党更替。我们在州一级测试了各种政党轮替措施。有证据表明，收入不平等会增加政党更替，并与州长政党更替呈非线性关系。当收入不平等严重时，共和党人对收入不平等的抵制更为明显，并且对民主党人有利，反之亦然。结果因不平等和政党轮换措施的选择而异，这表明应进一步审查各州的收入不平等。