Estimating finite-horizon life-cycle models: A quasi-Bayesian approach

• Main Author: LIU, Xiaobin
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2017
• Subjects: Finite-horizon life-cycle model; Structural estimation; Quasi-Bayesian estimator; Method of simulated moment; Numerical solution; GPU computation; Econometrics
• Online Access: https://ink.library.smu.edu.sg/soe_research/2307; https://ink.library.smu.edu.sg/context/soe_research/article/3306/viewcontent/20171129.pdf
• Institution: Singapore Management University

This paper proposes a quasi-Bayesian approach for structural parameters in finite-horizon life-cycle models. This approach circumvents the numerical evaluation of the gradient of the objective function and alleviates the local optimum problem. The asymptotic normality of the estimators with and without approximation errors is derived. The proposed estimators reach the semiparametric eciency bound in the general methods of moment (GMM) framework. Both the estimators and the corresponding asymptotic covariance are readily computable. The estimation procedure is easy to parallel so that the graphic processing unit (GPU) can be used to enhance the computational speed. The estimation procedure is illustrated using a variant of the model in Gourinchas and Parker (2002).