Showing papers on "Data envelopment analysis published in 1980"

Determining the Comparative Efficiency of Schools through Data Envelopment Analysis

Abstract: Conventional methods for comparing the relative productivity of schools employ least squares regression to find the expected achievement of schools with the same input characteristics The result is that analysts typically contrast the relative effects of "predictor"variables on achievement rather than comparing school units with respect to their input/output efficiency A newly developed input/output method for comparing the efficiency of decision making units is presented and it is applied to the elementary schools in an urban school district The method results in the identification of efficient and inefficient schools and provides management information relative to input and output measures

Frontier production function estimates for steam electric generation: a comparative analysis

Abstract: The performance of three frontier steam electric generation estimators is compared in terms of the consideration given to new production technologies and their technical efficiency. The Cobb-Douglas, constant elasticity of substitution, and translog production functions are examined, using the Aigner-Chu linear programming, the sophisticated Aigner-Lovell-Schmidt stochastic frontier, and the direct method of adjusted ordinary least squares frontier estimators. The use of Cobb-Douglas specification is judged to have narrowed the perceived difference between competing estimators. The choice of frontier estimator is concluded to have a greater effect on the plant efficiency than functional form. 19 references. (DCK)