Hadad Y, Z Sinuany-Stern and A Mehrez (2003). “Effect of Variations on Efficiency of Decision-Making Units with Respect to Output, Output Estimated by Production Functions, and Output Differences.” Central Euro J Oper Res 11(4): 351-367.

Hadley L and J Ruggiero (2006). “Final-Offer Arbitration in Major League Baseball: A Nonparametric Analysis.” Ann Oper Res 145: 201-209.

Haghighat MS and E Khorram (2005). “The Maximum and Minimum Number of Efficient Units in DEA with Interval Data.” Appl Math Comput 163(2): 919-930.

Hailu A and TS Veeman (2000). “Environmentally Sensitive Productivity Analysis of the Canadian Pulp and Paper Industry, 1959-1994: An Input Distance Function Approach.” J Environmental Economics and Management 40(3): 251-274.

Hailu A and TS Veeman (2001). “Alternative Methods for Environmentally Adjusted Productivity Analysis.” Agricultural Economics 25(2-3): 211-218.

Hailu A and TS Veeman (2001). “Non-Parametric Productivity Analysis with Undesirable Outputs: An Application to the Canadian Pulp and Paper Industry.” American J Agricultural Economics 83(3): 605-616.

Hailu A and TS Veeman (2003). “Comparative Analysis of Efficiency and Productivity Growth in Canadian Regional Boreal Logging Industries.” Canadian J Forest Research 33(9): 1653-1660.

Haji J (2007). “Production Efficiency of Smallholders’ Vegetable-Dominated Mixed Farming System in Eastern Ethiopia: A Non-Parametric Approach.” J African Economics 16(1): 1-27.

Haksever C (1996). “Data Envelopment Analysis – Foreword.” Computer and Operations Research 2: R 7-R 8.

Haas D, MG Kocher and M Sutter (2004). “Measuring Efficiency of German Football Teams by Data Envelopment Analysis.” Central Euro J Oper Res 12(3): 251-268.