https://usbig.net/wp-content/uploads/2023/03/USBIG-logo-1a.png00Amanda Wrayhttps://usbig.net/wp-content/uploads/2023/03/USBIG-logo-1a.pngAmanda Wray2018-02-02 23:21:042019-08-14 23:02:34What Defeated a Negative Income Tax?: Constructing a Causal Explanation of a Politically Controversial Historical Event