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Working Paper
Portage and path dependence
The authors examine portage sites in the U.S. South, Mid-Atlantic, and Midwest, including those on the fall line, a geomorphological feature in the southeastern U.S. marking the final rapids on rivers before the ocean. Historically, waterborne transport of goods required portage around the falls at these points, while some falls provided water power during early industrialization. These factors attracted commerce and manufacturing. Although these original advantages have long since been made obsolete, the authors document the continuing importance of these portage sites over time. They ...
Working Paper
Computationally efficient solution and maximum likelihood estimation of nonlinear rational expectation models
This paper presents new, computationally efficient algorithms for solution and estimation of nonlinear dynamic rational expectations models. The innovations in the algorithms are as follows: (1) The entire solution path is obtained simultaneously by taking a small number of Newton steps, using analytic derivatives, over the entire path; (2) The terminal conditions for the solution path are derived from the uniqueness and stability conditions from the linearization of the model around the terminus of the solution path; (3) Unit roots are allowed in the model; (4) Very general models with ...
Working Paper
History and the sizes of cities
We contrast evidence of urban path dependence with efforts to analyze calibrated models of city sizes. Recent evidence of persistent city sizes following the obsolescence of historical advantages suggests that path dependence cannot be understood as the medium-run effect of legacy capital but instead as the long-run effect of equilibrium selection. In contrast, a different, recent literature uses stylized models in which fundamentals uniquely determine city size. We show that a commonly used model is inconsistent with evidence of long-run persistence in city sizes and propose several ...
Report
On the market discipline of informationally opaque firms: evidence from bank borrowers in the federal funds market
Using plausibly exogenous variation in demand for federal funds created by daily shocks to reserve balances, we identify the supply curve facing a bank borrower in the interbank market and study how access to overnight credit is affected by changes in public and private measures of borrower creditworthiness. Although there is evidence that lenders respond to adverse changes in public information about credit quality by restricting access to the market in a fashion consistent with market discipline, there is also evidence that borrowers respond to adverse changes in private information about ...
Working Paper
Thick-market effects and churning in the labor market: evidence from U.S. cities
Using U.S. Census microdata, the authors show that, on average, workers change occupation and industry less in more densely populated areas. The result is robust to standard demographic controls, as well as to including aggregate measures of human capital and sectoral mix. Analysis of the displaced worker surveys shows that this effect is present in cases of involuntary separation as well. On the other hand, the authors actually find the opposite result (higher rates of occupational and industrial switching) for the subsample of younger workers. These results provide evidence in favor of ...
Journal Article
Shifts in the Beveridge Curve, job matching, and labor market dynamics
The Beveridge curve -- the scatter plot of unemployment rates versus vacancy rates -- has recently shifted inward dramatically. While the Beveridge curve is often used to summarize the state of the labor market, it is not a structural economic relationship. Thus, in order to understand the labor market implications of recent shifts in the curve, we must first understand the labor market activities that give rise to the Beveridge curve.> This article examines the Beveridge curve over the past 30 years. The authors discuss some of the issues surrounding the job-matching process and attempt to ...
Conference Paper
Maturity mismatch and financial crises: evidence from emerging market corporations
Substantial attention has been paid in recent years to the risk of maturity mismatch in emerging markets. Although this risk is microeconomic in nature, the evidence advanced thus far has taken the form of macro correlations. We evaluate this mechanism empirically at the micro level by using a database of over 3000 publicly traded firms from fifteen emerging markets. We measure the risk of short-term exposure by estimating, at the firm level, the effect on investment of the interaction of short-term exposure and aggregate capital flows. This effect is (statistically) zero, contrary to the ...
Working Paper
Corporate dollar debt and depreciations: much ado about nothing?
Much has been written recently about the problems for emerging markets that might result from a mismatch between foreign-currency denominated liabilities and assets (or income flows) denominated in local currency. In particular, several models, developed in the aftermath of financial crises of the late 1990s, suggest that the expansion in the "peso" value of "dollar" liabilities resulting from a devaluation could, via a net-worth effect, offset the expansionary competitiveness effect. Assessing which effect dominates, however, is ultimately an empirical matter. In this vein, we construct ...
Journal Article
New data on worker flows during business cycles
The most obvious economic cost of recessions is that workers become involuntarily unemployed. During the average business cycle contraction, total employment declines by about 1.5 percent, the unemployment rate rises by 2.7 percentage points, and it takes almost two years before employment recovers its pre-recession level. Both fiscal policy and monetary policy are concerned with these business cycle deviations of employment from its "full-employment" or "equilibrium" level. The aggregate statistics on employment and unemployment mask economically important information about the composition ...
Working Paper
Portage: path dependence and increasing returns in U.S. history
The authors examine portage sites in the U.S. South, Mid-Atlantic, and Midwest, including those on the fall line, a geomorphologic feature in the southeastern U.S. marking the final rapids on rivers before the ocean. Historically, waterborne transport of goods required portage around the falls at these points, while some falls provided water power during early industrialization. These factors attracted commerce and manufacturing. Although these original advantages have long since been made obsolete, the authors document the continuing-and even increasing-importance of these portage sites over ...