"This paper uses power resource theory to investigate the determinants of rising income inequality in the U.S. states from 1951–2018," the researchers wrote in the abstract. "Specifically, we analyze how political party control of national- and state-level government, presidential and gubernatorial election cycles, union strength and state right-to-work laws affect the Gini index and the Theil index—two measures that tap middle-class and upper-tail income inequality."

Read the article here: https://doi.org/10.1016/j.rssm.2022.100677