Two-step estimation, optimal moment conditions, and sample selection models
By: Whitney K. Newey, James L. Powell
Contributors: Powell, James, 1955-
Series: Working paper / Dept. of Economics -- 99-06; Working paper (Massachusetts Institute of Technology. Dept. of Economics) -- no. 99-06.
Publisher: Dept. of Economics, Massachusetts Institute of Technology
Published: 1999
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 28
Notes: "February 1999."

Includes bibliographical references (p. 27-28).

Supported by the NSF.