"Construct validity of an objective (entropy and SIC count based) categorical measure of diversification strategy."
Strategic Management Journal
Volume
14
Issue
3
Journal Articles
Management
1993
Hoskisson, R., M. Hitt, R. Johnson, & D. Moesel (1993). "Construct validity of an objective (entropy and SIC count based) categorical measure of diversification strategy." Strategic Management Journal, 14(3), pp. 215-235.