It is assumed that the number of buses to be operated during the various periods of the day,
which is the primary factor determining costs, has already been determined and is a problem …

(11b) o 0. m 1,..., M. Here zo is not specified in advance and must be chosen to satisfy the
con-straints. For abbreviation the tioo,..., tio and the iol,...,. r will be gathered into vectors and …

We develop an efficiency measurement framework for systems composed of two subsystems
arranged in series that simultaneously computes the efficiency of the aggregate system and …

An econometric methodology is developed for nonparametric estimation of concave production
technologies. The methodology, based on the principle of maximum likelihood, uses …

This paper develops a symmetric conjugate relation for quasi-convex functions. The concept
of an evenly quasi-convex function is introduced and it is shown that this is the required …

… PASSY … PASSY … The numerical example solved below has previously been solved
by White, Johnson and Dantzig [10] and by Passy and Wilde [8]. The combustion of a …

This paper describes a symmetric duality relation for quasi-convex programs. We are able
to strengthen previous results and to define necessary and sufficient conditions for the …

… Ury Passy … Passy, U.,Generalized Weighted Mean Programming, SIAM Journal on
Applied Mathematics, Vol. 20, No. 4, 1971.… Passy, U.,Modular Design--An Application of …

This paper considers an efficient algorithm for finding the optimal design of a module under
a special set of circumstances that prevail in the design of a module for logistical applications…

Technical and scale efficiencies of Data Envelope Analysis are associated with a two
dimensionalsection (a convex set) representing the amounts by which the input and output vectors …