We consider statistical inference for regression when data are grouped into clusters, with
regression model errors independent across clusters but correlated within clusters …

We discuss instrumental variables (IV) estimation in the broader context of the generalized
method of moments (GMM), and describe an extended IV estimation routine that provides …

Tiebout choice among districts is the most powerful market force in American public
education. Naive estimates of its effects are biased by endogenous district formation. I derive …

This article investigates whether public investments that led to improvements in road quality
and increased access to agricultural extension services led to faster consumption growth …

Using a large panel of Chinese listed firms over the period 1998–2014, we document strong
evidence of investment inefficiency, which we explain through a combination of financing …

In this paper we examine the importance of local spillovers—such as network externalities
and learning from others—in the diffusion of home computers. We use data on 110,000 US …

In this survey we consider regression analysis when observations are grouped in clusters,
with independence across clusters but correlation within clusters. We consider this in …

Why are many of China's successful rural enterprises publically owned by local
communities? Using a set of provincial data, we find that the share of community public firms …

We use heterogeneity in the timing of television's introduction to different local markets to
identify the effect of preschool television exposure on standardized test scores during …

This article uses variation in the labor supply of twelfth-grade students created by interstate
variations in child labor laws to estimate the effect of school-year work on twelfth-grade math …