Kim, Sungchan, and Soyoung Park. “Investment Earnings As a Countercyclical Tool: Evidence from U.S. State Governments”. International Journal of Economics and Financial Issues 7, no. 2 (April 3, 2017): 138–144. Accessed April 26, 2024. https://www.econjournals.com/index.php/ijefi/article/view/3956.