Sengupta JK (1989). “Farrell Efficiency: Some Generalisations and Econometric Implications.? in Essays in Honor Professor Karl Afox North Holland.

Sengupta JK (1989). “Measuring Economic Efficiency with Stochastic Input-Output Data.” Int J Syst Sci 2: 203-213.

Sengupta JK (1989). “Nonlinear Measures of Technical Efficiency.” Computer and Operations Research 16(1): 55-65.

Sengupta JK (1989). “Nonparametric-Tests of Efficiency of Portfolio Investment.” J Economics-Zeitschrift Fur Nationalokonomie 5: 1-15.

Sengupta JK (1990). “Measuring Portfolio Efficiency: A Critique.” Int J Syst Sci 21(3): 511-525.

Sengupta JK (1990). “Structural Efficiency in Stochastic Models of Data Envelopment Analysis.” Int J Syst Sci 21(6): 1047-1056.

Sengupta JK (1990). “Tests of Efficiency in Data Envelopment Analysis.” Computer and Operations Research 1: 123-132.

Sengupta JK (1990). “Transformations in Stochastic DEA Models ” J Econometrics 46(1/2): 109-123.

Sengupta JK (1991). “The Influence Curve Approach in Data Envelopment Analysis.” Mathematical Programming, Series B 5: 147-166.

Sengupta JK (1988). “On a Criterion of Infinite-Horizon Efficiency.” J Economic Theory 4: 409-413.