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Working Paper
Superstar Economists: Coauthorship networks and research output
Hsieh, Chih-Sheng; König, Michael D.; Zimmermann, Christian; Liu, Xiaodong (2018-10-09)
We study the impact of research collaborations in coauthorship networks on research output and how optimal funding can maximize it. Through the links in the collaboration network, researchers create spillovers not only to their direct coauthors but also to researchers indirectly linked to them. We characterize the equilibrium when agents collaborate in multiple and possibly overlapping projects. We bring our model to the data by analyzing the coauthorship network of economists registered in the RePEc Author Service. We rank the authors and research institutions according to their contribution ...
Working Papers , Paper 2018-28

Working Paper
Large and Small Sellers: A Theory of Equilibrium Price Dispersion with Sequential Search
Menzio, Guido; Trachter, Nicholas (2014-03-15)
The paper studies equilibrium pricing in a product market for an indivisible good where buyers search for sellers. Buyers search sequentially for sellers but do not meet every seller with the same probability. Specifically, a fraction of the buyers' meetings lead to one particular large seller, while the remaining meetings lead to one of a continuum of small sellers. In this environment, the small sellers would like to set a price that makes the buyers indifferent between purchasing the good and searching for another seller. The large seller would like to price the small sellers out of the ...
Working Paper , Paper 14-8

Working Paper
A simple model of price dispersion
Chudik, Alexander (2012)
This article considers a simple stock-flow matching model with fully informed market participants. Unlike in the standard matching literature, prices are assumed to be set ex-ante. When sellers pre-commit themselves to sell their products at an advertised price, the unique equilibrium is characterized by price dispersion due to the idiosyncratic match payoffs (in a marketplace with full information). This provides new insights into the price dispersion literature, where price dispersion is commonly assumed to be generated by a costly search of uninformed buyers.
Globalization Institute Working Papers , Paper 112

Working Paper
Screening and Adverse Selection in Frictional Markets
Lester, Benjamin; Venkateswaran, Venky; Shourideh, Ali; Zetlin-Jones, Ariel (2017-10-10)
We incorporate a search-theoretic model of imperfect competition into a standard model of asymmetric information with unrestricted contracts. We characterize the unique equilibrium, and use our characterization to explore the interaction between adverse selection, screening, and imperfect competition. We show that the relationship between an agent?s type, the quantity he trades, and the price he pays is jointly determined by the severity of adverse selection and the concentration of market power. Therefore, quantifying the effects of adverse selection requires controlling for market ...
Working Papers , Paper 17-35

Working Paper
Effects of Credit Supply on Unemployment and Inequality
Bandyopadhyay, Subhayu; Dinopoulos , Elias; Unel, Bulent (2016-06-15)
The Great Recession, which was preceded by the financial crisis, resulted in higher unemployment and inequality. We propose a simple model where firms producing varieties face labor-market frictions and credit constraints. In the model, tighter credit leads to lower output, lower number of vacancies, and higher directed-search unemployment. Where workers are more productive at higher levels of firm output, lower credit supply increases firm capital intensity, raises inequality by increasing the rental of capital relative to the wage, and has an ambiguous effect on welfare. At initial high ...
Working Papers , Paper 2016-13

Working Paper
Asymmetric Information and the Death of ABS CDOs
Beltran, Daniel O.; Thomas, Charles P.; Cordell, Lawrence R. (2013)
A key feature of the 2007 financial crisis is that for many securities trading had ceased; where trading did occur, market prices were well below intrinsic values, especially for ABS CDOs. One explanation is that information had been asymmetric, with sellers having better information than buyers. We first show the information advantages sellers had over buyers in both the issuance of CDOs and, through vertical integration, performance of the CDO collateral that could well have disrupted trading after the onset of the crisis. Using a ?workhorse" model for pricing securities under asymmetric ...
International Finance Discussion Papers , Paper 1075

Journal Article
Effects of Credit Supply on Unemployment and Income Inequality
Dinopoulos , Elias; Unel, Bulent; Bandyopadhyay, Subhayu (2018)
The Great Recession, which was preceded by the Financial Crisis, resulted in higher unemployment and income inequality. We propose a simple model where firms producing varieties face labor-market frictions and credit constraints. In the model, tighter credit leads to lower output, a lower number of vacancies, and higher directed-search unemployment. If workers are more productive at higher levels of firm output, then a lower credit supply increases firm capital intensity, raises income inequality by increasing the rental of capital relative to the wage, and has an ambiguous effect on welfare. ...
Review , Volume 100 , Issue 4 , Pages 345-362

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