The world is replete with spatial frictions. Shipping goods across cities entails trade frictions. Commuting within cities causes urban frictions. How important are these frictions in shaping the spatial economy? We develop and quantify a novel framework to address this question at three...

Using data from the National Educational Panel Study of 2009/2010, this paper investigates the relationship between regional training supply and employees' training participation. Controlling for other regional factors such as the local unemployment rate, the educational level, the population...

It is widely believed that unaffordable housing could drive businesses away and thus impede job growth. However, there is little evidence to support this view. This paper presents a simple model to clarify how housing affordability is linked to employment growth and why unaffordable housing...

This paper argues that UN military interventions are geographically biased. For every 1,000 kilometers of distance from the three Western permanent UNSC members (France, UK, US), the probability of a UN military intervention decreases by 4 percent. We are able to rule out several alternative...

We propose an integrated framework to discuss the empirical literature on the local determinants of agglomeration effects. We start by presenting the theoretical mechanisms that ground individual and aggregate empirical specifications. We gradually introduce static effects, dynamic effects, and...

We study the extent of overcrowding amongst British urban working families in the early 1900s and find major regional differences. In particular, a much greater proportion of households in urban Scotland were overcrowded than in the rest of Britain and Ireland. We investigate the causes of this...

We analyze empirically the effects of urban agglomeration on Italian college graduates' work possibilities as entrepreneurs three years after graduation. We find that each 100,000 inhabitant-increase in the size of the individual's province of work reduces the chances of being an entrepreneur by...

We analyse the influence of regional determinants on the decision of employers to provide within-firm further training. We estimate the effects of the regional population density, the unemployment rate and the regional concentration of an industry against the background of several determinants...

This paper explores the geographic overlap of trade and technology shocks across local labor markets in the United States. Regional exposure to technological change, as measured by specialization in routine task-intensive production and clerical occupations, is largely uncorrelated with regional...

We analyze the role of optimal income taxation across different local labor markets. Should labor in large cities be taxed differently than in small cities? We find that a planner who needs to raise revenue and is constrained by free mobility of labor across cities does not choose equal taxes...