Lobbying and regulation in a political economy: Evidence from the US cellular industry

In this paper we empirically test the simultaneity between the effects and the determinants of price regulation in the U.S. mobile telecommunications industry. We find that the regulatory regime is endogenous to firms pricing strategies. Because of lobbying successfulness, firms avoided regulation in those markets where it would have been more effective. Therefore, regulation did not significantly reduce cellular tariffs in regulated markets but it would have decreased them if adopted in non-regulated ones. Also, we provide evidence that the choice of the regulatory regime strongly depends on the political as well as regulatory environments.