Instrumental variable estimation requires untestable exclusion restrictions. With policy effects on individual outcomes, there is typically a time interval between the moment the agent realizes that he may be exposed to the policy and the actual exposure or the announcement of the actual...

Economists have studied the impact of numerous state laws, from welfare rules to voting ID requirements. Yet for all this policy evaluation, what do we know about policy diffusion--how these policies spread from state to state? We present a series of facts based on a data set of over 700 U.S....

The "voltage effect" is defined as the tendency for a program's efficacy to change when it is scaled up, which in most cases results in the absolute size of a program's treatment effects to diminish when the program is scaled. Understanding the scaling problem and taking steps to diminish...

The labor market differs from other markets in many respects. Most important is that those who supply labor also have to deliver it in person. It means firstly that the work environment and organization of work are important for those who deliver labor, since they are in the work place....

How should the government respond to automation? We study this question in a heterogeneous agent model that takes worker displacement seriously. We recognize that displaced workers face two frictions in practice: reallocation is slow and borrowing is limited. We first show that these frictions...

We challenge the prevailing view that pure informational lobbying (in the absence of political contributions and evidence distortion or withholding) leads to better informed policymaking. In the absence of lobbying, the policymaker may prioritize the more-important or ex ante morepromising...

Formal models in political science typically consider actors with differing interests or ideologies, but political actors often have “good faith disagreements” about how to achieve commonly shared goals. We develop a model of a hierarchical political organization in which a principal and an...

We challenge the prevailing view that pure informational lobbying (in the absence of political contributions and evidence distortion or withholding) leads to better informed policymaking. In the absence of lobbying, the policymaker may prioritize more-promising issues. Recognizing this, interest...