This paper studies the sources of agglomeration economies in cities. We begin by introducing a simple dynamic spatial equilibrium model that incorporates spillovers within and across industries, as well as city-size effects. The model generates a dynamic panel-data estimation equation. We...

This paper develops a quantitative model of internal city structure that features agglomeration and dispersion forces and an arbitrary number of heterogeneous city blocks. The model remains tractable and amenable to empirical analysis because of stochastic shocks to commuting decisions, which...

New York has been remarkably successful relative to any other large city outside of the sunbelt and it remains the nation's premier metropolis. What accounts for New York's rise and continuing success? The rise of New York in the early nineteenth century is the result of technological changes...

Comprehensive zoning is ubiquitous in U.S. cities, yet we know surprisingly little about its long-run impacts. We provide the first attempt to measure the causal effect of land use regulation over the long term, using as our setting Chicago's first (1923) comprehensive zoning ordinance. Our...

This paper examines city formation in a country whose urban population is growing steadily over time, with new cities required to accommodate this growth. In contrast to most of the literature there is immobility of housing and urban infrastructure, and investment in these assets is taken on the...

Residential segregation by race grew sharply during the early twentieth century as black migrants from the South arrived in northern cities. The existing literature emphasizes collective action by whites to restrict where blacks could live as the driving force behind this rapid rise in...

China's four-trillion-yuan stimulus package fueled by bank loans in 2009 has led to the rapid growth of shadow banking activities after 2012. Local governments financed the stimulus through bank loans in 2009, and resorted to non-bank debt financing after 2012 given the rollover pressure from...

China's economic reforms over the past 40 years have led to a mixed economic structure with the government playing a key role in an increasingly market-driven economy. This paper expands a standard growth model of Barro (1990) to incorporate this structure, with a particular focus on including...

The literature on the effects of foreign direct investment (FDI) and activities of multinational enterprises (MNEs) on host-countries has been almost exclusively focused on issues of productivity, growth and wages. We argue that this leaves quite a bit of important unexplored areas of inquiry,...

What are the consequences of electing a female leader for policy and political outcomes? We answer this question in the context of U.S. cities, where women's participation in mayoral elections increased from negligible numbers in 1970 to about one-third of the elections in the 2000's. We use a...