Authors: Athanasios G. Tsagkanos
Addresses: Department of Business Administration of Food and Agricultural Enterprises, University of Ioannina, 2 G. Seferi Str. Agrinio 301 00, Greece
Abstract: In this paper, we show the inability of a recent average treatment effect estimator (ATE) to catch up the asymptotic semiparametric efficiency bound of Hahn (1998) although it minimises the mean squared error. Additionally, we propose the use of a minimum variance unbiased uniformly estimator of the propensity score in order to minimise the loss of efficiency.
Keywords: average treatment effect; ATE estimator; propensity score; minimum variance unbiased uniformly estimator; efficiency loss.
International Journal of Computational Economics and Econometrics, 2009 Vol.1 No.1, pp.1 - 8
Published online: 06 Nov 2009 *Full-text access for editors Access for subscribers Purchase this article Comment on this article