Wei Q, G Yu and J Lu (2002). “The Necessary and Sufficient Conditions for Returns to Scale Properties in Generalized Data Envelopment Analysis Model.” Science in China, Series E 45(5): 503-517.

Wei Q, J Zhang and X Zhang (2000). “An Inverse DEA Model for Inputs/Outputs Estimate.” EJOR 121(1): 151-163.

Warning S (2004). “Performance Differences in German Higher Education: Empirical Analysis of Strategic Groups.” Review of Industrial Organization 24(4): 393-408.

Watcharasriroj B and JCS Tang (2004). “The Effects of Size and Information Technology on Hospital Efficiency.” J High Technology Management Research 15(1): 1.

Watson GH (2000). “The Ethics of Analysis: How to Keep Your Numbers Honest.” Quality Progress 33(8): 18.

Waxman HC, SYL Huang, L Anderson and T Weinstein (1997). “Classroom Process Differences in Inner-City Elementary Schools.” J Education Research 91(1): 49-59.

Weber CA, JR Current and A Desai (1998). “Non-Cooperative Negotiation Strategies for Vendor Selection.” EJOR 108(1): 208-223.

Weber CA and A Desai (1996). “Determination of Paths to Vendor Market Efficiency Using Parallel Coordinates Representation: A Negotiation Tool for Buyers.” EJOR 90(1): 142-155.

Weber MM (2002). “Using DEA to Measure Fatality Related Efficiency in the U.S. Trucking Industry.? in Proceedings of 33rd Annual Meeting of the Decision Sciences Institute, Decision Sci. Inst: 6.

Weber WL and M Devaney (1999). “Bank Efficiency, Risk-Based Capital, and Real Estate Exposure: the Credit Crunch Revisited.” Real Estate Economics 27(1): 1-25.