Under review at Strategic Management Journal COMPARING ALTERNATIVE METHODS TO ESTIMATE CORPORATE AND INDUSTRY EFFECTS Thomas h. Brush Krannert School of Management Purdue universi West Lafayette, Indiana 47906 (765)494444 (765)494-1526fax Constance R. James Pepperdine University Malibu. Califomia 90265 (310)317-7371 (310)456-0437fax Philip Bromiley Carlson School of management University of Minnesota Minneapolis, MN 55402 (612)624-5746 (612)626-1316fax