Ruggiero J (1996). “On the Measurement of Technical Efficiency in the Public Sector.” EJOR 90(3): 553-565.

Ruggiero J (1998). “New Approach for Technical Efficiency Estimation in Multiple Output Production.” EJOR 111(2): 369-380.

Ruggiero J (1998). “Non-Discretionary Inputs in Data Envelopment Analysis.” EJOR 111(3): 461-469.

Ruggiero J (1999). “Efficiency Estimation and Error Decomposition in the Stochastic Frontier Model: A Monte Carlo Analysis.” EJOR 115(3): 555-563.

Ruggiero J (1999). “Nonparametric Analysis of Educational Costs.” EJOR 119(3): 605-612.

Ruggiero J (2000). “Measuring Technical Efficiency.” EJOR 121(1): 138-150.

Ruggiero J (2000). “Nonparametric Estimation of Returns to Scale in the Public Sector with an Application to the Provision of Educational Services.” JORS 51(8): 906-912.

Ruggiero J (2001). “Determining the Base Cost of Education: An Analysis of Ohio School Districts.” Contemporary Economic Policy 19(3): 268-279.

Ruggiero J (2003). “Comment on Estimating School Efficiency.” Economics of Education Review 22(6): 631.

Ruggiero J (2004). “Data Envelopment Analysis with Stochastic Data.” JORS 55(9): 1008-1012.