In his jobs address to a joint session of Congress, President Obama returned to a familiar theme: a call for nontraditional infrastructure investment as a generator of economic growth and, ultimately, jobs. There is no assurance that domestic private capital investment alone is sufficient to...

Using a model of repeated agency, we explain previously unexplained features of the real-world lobbying industry. Lobbying is divided between direct representation by special interests to policymakers, and indirect representation where special interests employ professional intermediaries called...

We model which special interest groups lobby which policymakers directly, and which employ for-profit intermediaries. We show that special interests affected by policy issues that frequently receive high political salience lobby policymakers directly, while those that rarely receive high...

This study explains the observed repeated personal interactions between lobbyists and policymakers. The analysis uses a dynamic model of commercial lobbying in which citizens may hire lobbyists to present policy proposals on their behalf to policymakers. It is shown that repeated interactions...

In this paper we model the commercial lobbying industry (such as the so-called K-Street lobbyists of Washington, D.C.). In contrast to classical special interest groups commercial lobbying firms are not directly motivated by policy outcomes. They exist to make profits by selling intermediaries...

We study lobbying in a setting in which decision-makers share resources in a network. Two opposing interest groups choose which decision-maker they want to target with their resource provision, and their decision depends on the decision-makers' ideologies as well as the network structure. We...