This paper examines the political activity of US defense contractors over the years 1980-1994. Using econometric techniques to account for both fixed-effects and selection, I examine the industry determinants and distribution patterns of political action committee (PAC) contributions to the US...

This paper examines several hypotheses that have been proposed to explain the existence and growth of legislators' campaign "warchests". We examine the sources and political consequences of warchests in US House elections over the period of 1978-1998. Briefly, our findings are as follows. First,...