-
作者:Krasa, S; Villamil, AP
作者单位:University of Illinois System; University of Illinois Urbana-Champaign
-
作者:Ghirardato, P; Maccheroni, F; Marinacci, M; Siniscalchi, M
摘要:We provide a simple behavioral definition of 'subjective mixture' of acts for a large class of (not necessarily expected-utility) preferences. Subjective mixtures enjoy the same algebraic properties as the 'objective mixtures' used to great advantage in the decision setting introduced by Anscombe and Aumann (1963). This makes it possible to formulate mixture-space axioms in a fully subjective setting. For illustration, we present simple subjective axiomatizations of some models of choice under...
-
作者:Andrews, DWK; Guggenberger, P
作者单位:Yale University
摘要:In this paper, we propose a simple bias-reduced log-periodogram regression estimator, (d) over cap (r), of the long-memory parameter, d, that eliminates the first- and higher-order biases of the Geweke and Porter-Hudak (1983) (GPH) estimator. The bias-reduced estimator is the same as the GPH estimator except that one includes frequencies to the power 2k for k = 1,...,r, for some positive integer r, as additional regressors in the pseudo-regression model that yields the GPH estimator. The reduc...
-
作者:Echenique, F
作者单位:Universidad Torcuato Di Tella
-
作者:Athey, S; Haile, PA
作者单位:Stanford University; University of Wisconsin System; University of Wisconsin Madison
摘要:This paper presents new identification results for models of first-price, second-price, ascending (English), and descending (Dutch) auctions. We consider a general specification of the latent demand and information structure, nesting both private values and common values models, and allowing correlated types as well as ex ante asymmetry. We address identification of a series of nested models and derive testable restrictions enabling discrimination between models on the basis of observed data. ...
-
作者:Zheng, BH
作者单位:University of Colorado System; University of Colorado Denver
-
作者:Battaglini, M
摘要:In previous work on cheap talk, uncertainty has almost always been modeled using a single-dimensional state variable. In this paper we prove that the dimensionality of the uncertain variable has an important qualitative impact on results and yields interesting insights into the mechanics of information transmission. Contrary to the unidimensional case, if there is more than one sender, full revelation of information in all states of nature is generically possible, even when the conflict of int...
-
作者:Dolado, JJ; Gonzalo, J; Mayoral, L
作者单位:Universidad Carlos III de Madrid
摘要:This paper presents a new test for fractionally integrated (FI) processes. In particular, we propose a testing procedure in the time domain that extends the well-known Dickey-Fuller approach, originally designed for the I(1) versus I(0) case, to the more general setup of FI(d(0)) versus FI(d(1)), with d(1) < d(0). When d(0) = 1, the proposed test statistics are based on the OLS estimator, or its t-ratio, of the coefficient on Delta(d1)y(t-1) in a regression of Deltay(t) on Delta(d1)y(t-1) and,...
-
作者:Blomquist, S; Newey, W
作者单位:Uppsala University; Massachusetts Institute of Technology (MIT)
摘要:Choice models with nonlinear budget sets provide a precise way of accounting for the nonlinear tax structures present in many applications. In this paper we propose a nonparametric approach to estimation of these models. The basic idea is to think of the choice, in our case hours of labor supply, as being a function of the entire budget set. Then we can do nonparametric regression where the variable in the regression is the budget set. We reduce the dimensionality of this problem by exploiting...
-
作者:Chen, ZJ; Epstein, L
作者单位:Universite PSL; Universite Paris-Dauphine
摘要:Models of utility in stochastic continuous-time settings typically assume that beliefs are represented by a probability measure, hence ruling out a priori any concern with ambiguity. This paper formulates a continuous-time intertemporal version of multiple-priors utility, where aversion to ambiguity is admissible. In a representative agent asset market setting, the model delivers restrictions on excess returns that admit interpretations reflecting a premium for risk and a separate premium for ...