作者:THURSTON, TB
作者单位:City University of New York (CUNY) System; Queens College NY (CUNY)
作者:SIMKOWITZ, MA; JONES, CP
作者单位:Indiana University System; Indiana University Bloomington; North Carolina State University
作者:IMAI, Y
作者单位:University of California System; University of California Los Angeles
作者:KOPITS, GF
作者单位:United States Department of the Treasury