Review of Economics and Statistics, Vol.94, No 1, 304--319, January 2012, 10.1162/REST_a_00168
Christine Marie George, Alexander van Geen, Vesna Slavkovich, Ashit Singha, Diane Levy, Tariqul Islam, Kazi Matin Ahmed, Joyce Moon-Howard, Alessandro Tarozzi, Xinhua Liu, Pam Factor-Litvak and Joseph Graziano