Many governments have engaged in policy experimentation in various forms to resolve uncertainty and facilitate learning. However, little is understood about the characteristics of policy experimentation, and how the structure of experimentation may affect policy learning and policy outcomes. We...

This paper presents a framework for how to incorporate prior sources of information into the design of a sequential experiment. These sources can include previous experiments, expert opinions, or the experimenter's own introspection. We formalize this problem using a multi-prior Bayesian...

This article examines the risks faced by China's real estate sector within its distinct hybrid economy, which combines market mechanisms with comprehensive state planning and government intervention. The real estate sector holds particular importance as land sale revenues are a crucial source of...

In 2006, the federal government effectively uncapped student borrowing for graduate programs with the introduction of the Graduate PLUS loan program. Access to additional federal loans increased graduate students' borrowing and shifted the composition of their loans from private to federal debt....

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...

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....

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 introduce a general quantifiable framework to study the location decisions of multinational firms. In the model, firms choose in which locations to pay the fixed costs of setting up production, taking into account potential complementarities among production locations. The firm's location...

We collect time-use data for entrepreneurs and their workers in over 1,000 manufacturing firms in urban Uganda. We document limited labor specialization within the firm for establishments of all sizes and argue that this is likely due to the prevalence of product customization. We then develop a...

This paper proposes that strong financial, judicial, and labor market institutions provide comparative advantage in clean industries, and thereby improve a country's environmental quality. Five complementary tests support this hypothesis. First, industries that depend on institutions are...