The papers below are in progress, comments welcome.
The conversion from postscript to acrobat's portable document format
(pdf) doesn't handle pictures very well, so users of PC's might want to
download a postscript reader like
Entry, Cannibalization and Bankruptcy in the U.S. Motion Picture Exhibition Market
pdf (February 2002)
Demand Models for Market Level Data
pdf (October 2001) **New version includes new algorithm for computation of mean utilities in discrete choice models to complement BLP's contraction mapping**
Estimating Multi-Way Error Components Models with Unbalanced Data Structures, Journal of Econometrics, 2002, Vol. 106(1), pp67-95. To be reprinted in "Recent Developments in the Econometrics of Panel Data" edited by Badi H. Baltagi and George Sumney, Edward Elgar Publishing, UK.
Empirical Models of Demand for Differentiated Products.
European Economic Review (papers and proceedings), 2000. Vol 44(4-6), pp 993-1005.