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作者：Rossi-Hansberg, E
作者单位：Princeton University; Princeton University
摘要：The equilibrium relationship between trade and the spatial distribution of economic activity is fundamental to the analysis of national and regional trade patterns, as well as to the effect of trade frictions. We study this relationship using a trade model with a continuum of regions, transport costs, and agglomeration effects caused by production externalities. We analyze the equilibrium specialization and trade patterns for different levels of transport costs and externality parameters. Unde...
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作者：Davidoff, T; Brown, JR; Diamond, PA
作者单位：University of California System; University of California Berkeley; University of Illinois System; University of Illinois Urbana-Champaign; National Bureau of Economic Research; Massachusetts Institute of Technology (MIT)
摘要：Advancing annuity demand theory, we present sufficient conditions for the optimality of full annuitization under market completeness which are substantially less restrictive than those used by Menahem E. Yaari (1965). We examine demand with market incompleteness, finding that positive annuitization remains optimal widely, but complete annuitization does not. How uninsured medical expenses affect demand for illiquid annuities depends critically on the timing of the risk. A new set of calculatio...
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作者：Hay, B; Spier, KE
作者单位：Harvard University; Northwestern University
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作者：Karlan, DS
作者单位：Yale University
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作者：[Anonymous]
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作者：Aragones, E; Gilboa, I; Postlewaite, A; Schmeidler, D
摘要：People may be surprised to notice certain regularities that hold in existing knowledge they have had for some time. That is, they may learn without getting new factual information. We argue that this can be partly explained by computational complexity. We show that, given a knowledge base, finding a small set of variables that obtain a certain value of R-2 is computationally hard, in the sense that this term is used in computer science. We discuss some of the implications of this result and of...
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作者：Ashcraft, AB
作者单位：Federal Reserve System - USA; Federal Reserve Bank - New York
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作者：Dafny, LS
作者单位：Northwestern University; National Bureau of Economic Research; Northwestern University; Northwestern University
摘要：This paper examines hospital responses to changes in diagnosis-specific prices by exploiting a 1988 policy reform that generated large price changes for 43 percent of Medicare admissions. I find hospitals responded primarily by upcoding patients to diagnosis codes with the largest price increases. This response was particularly strong among for-profit hospitals. I find little evidence hospitals increased the volume of admissions differentially for diagnoses subject to the largest price increa...
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作者：Antonovics, KL; Goldberger, AS
作者单位：University of California System; University of California San Diego; University of Wisconsin System; University of Wisconsin Madison
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作者：Dal Bó, P
作者单位：Brown University
摘要：While there is an extensive literature on the theory of infinitely repeated games, empirical evidence on how the shadow of the future affects behavior is scarce and inconclusive. I simulate infinitely repeated prisoner's dilemma games in the lab with a random continuation rule. The experimental design represents an improvement over the existing literature by including sessions with finite repeated games as controls and a large number of players per session (which allows for learning without co...
