

Recent empirical studies of firm-level performance have tested complementarity in the case of multiple practices. These papers have drawn conclusions using potentially biased estimates of pair-wise interaction effects. We develop a consistent and simple testing framework and test it against alternatives. © 2010 The Author(s).
Carree, M.; Department of Organization and Strategy, School of Business and Economics, Maastricht University, PO Box 616, Netherlands;
© Copyright 2011 Elsevier B.V., All rights reserved.