Firm-Level Lobbying and Policy Uncertainty: Evidence from Financial Markets


Elections resolve policy uncertainty, but their effects vary across lobbying and non-lobbying firms. This paper examines whether this is due to firms using lobbying to mitigate the effect of policy changes on their equity prices. Our arguments are both theoretical and empirical. First, we use option prices for over 2,500 publicly-traded firms to examine the implied volatility associated with the 2020 U.S. Presidential election. Once we control for selection into lobbying, we find that lobbying firms have, on average, lower electorally-induced volatility than similar non-lobbying firms. The effects are heterogeneous across sectors. We rationalize these findings through an equilibrium model where heterogeneous firms can choose (i) production; (ii) whether to enter lobbying; and (iii) how much to spend in lobbying if they do so. We structurally estimate this model and decompose the role of selection into lobbying versus the benefits from lobbying in explaining firms' choices, and, ultimately, the decreased volatility implied in option prices. Our results reveal that there are large costs in affecting policy through lobbying. This, combined with a positive fixed cost of lobbying and a highly skewed distribution of the heterogeneous benefits from lobbying (e.g., firms with access and connections) explains why only a small number of firms lobby, despite its benefits. We conclude by discussing the effects of restricting lobbying on consumer and investor welfare.

Kristy Buzard
Kristy Buzard
Associate Professor of Economics

My current research focuses on the formation and maintenance of international trade agreements, conflict resolution, and innovation. I am particularly interested in the impact of international institutions, government structure and domestic political pressure on the possibilities for cooperation.