Congressional certification: How firms use former Congress members to lobby on their behalf

This paper models the effect of firm-level profitability (earnings before interest and taxes and return on sales) against certification by former members of the U.S. Congress. Although some scholars have studied certification, none have studied certification in the public policy market as is done in the current work. Likewise, although scholars have studied the effects of lobbying and political connections on firms' outcomes, none have studied lobbying through former Congress members specifically. The findings confirm that, after controlling for numerous factors, firms can use former Congress members to effectively lobby and certify their intentions. Both firm-level earnings before interest and taxes and return on sales were significantly associated with prior lobbying efforts by these former elected federal officials in several different estimation techniques employed in the study.