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作者：Savani, R; von Stengel, B
作者单位：University of London; London School Economics & Political Science
摘要：The Lemke-Howson algorithm is the classical method for finding one Nash equilibrium of a bimatrix game. This paper presents a class of square bimatrix games for which this algorithm takes, even in the best case, an exponential number of steps in the dimension d of the game. Using polytope theory, the games are constructed using pairs of dual cyclic polytopes with 2d suitably labeled facets in d-space. The construction is extended to nonsquare games where, in addition to exponentially long Lemk...
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作者：Athey, S; Imbens, GW
作者单位：Stanford University; National Bureau of Economic Research; University of California System; University of California Berkeley; University of California System; University of California Berkeley
摘要：This paper develops a generalization of the widely used difference-in-differences method for evaluating the effects of policy changes. We propose a model that allows the control and treatment groups to have different average benefits from the treatment. The assumptions of the proposed model are invariant to the scaling of the Outcome. We provide conditions under which the model is nonparametrically identified and propose an estimator that can be applied using either repeated cross section or p...
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作者：Damjanovic, V; Nolan, C
作者单位：University of St Andrews
摘要：A key argument in Caplin and Leahy (1997) states that the correlation between monetary shocks and output is falling in the variance of the money supply. We demonstrate that this conclusion depends on solving for the correlation in the nonstationary state of the model. In the stationary state, that correlation is initially rising.
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作者：Cahuc, P; Postel-Vinay, F; Robin, JM
作者单位：heSam Universite; Universite Pantheon-Sorbonne; Institut Polytechnique de Paris; ENSAE Paris; Universite PSL; Ecole Normale Superieure (ENS); Ecole des Hautes Etudes en Sciences Sociales (EHESS); Institut Polytechnique de Paris; Ecole des Ponts ParisTech; Centre National de la Recherche Scientifique (CNRS); University of Bristol; University of London; University College London
摘要：Most applications of Nash bargaining over wages ignore between-employer competition for labor services and attribute all of the workers' rent to their bargaining power. In this paper, we write and estimate an equilibrium model with strategic wage bargaining and on-the-job search and use it to take another look at the determinants of wages in France. There are three essential determinants of wages in our model: productivity, competition between employers resulting from on-the-job search, and th...
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作者：Amador, M; Werning, I; Angeletos, GM
作者单位：Stanford University; Massachusetts Institute of Technology (MIT)
摘要：We study the optimal trade-off between commitment and flexibility in a consumption-savings model. Individuals expect to receive relevant information regarding tastes and thus they value the flexibility provided by larger choice sets. On the other hand, they also expect to suffer from temptation, with or without self-control, and thus they value the commitment afforded by smaller choice sets. The optimal commitment problem we study is to find the best subset of the individual's budget set. This...
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作者：Angrist, J; Chernozhukov, V; Fernández-Val, I
作者单位：Massachusetts Institute of Technology (MIT); Boston University
摘要：Quantile regression (QR) fits a linear model for conditional quantiles just as ordinary least squares (OLS) fits a linear model for conditional means. An attractive feature of OLS is that it gives the minimum mean-squared error linear approximation to the conditional expectation function even when the linear model is misspecified. Empirical research using quantile regression with discrete covariates suggests that QR may have a similar property, but the exact nature of the linear approximation ...
