نتایج جستجو برای: cost Malmquist index

تعداد نتایج: 771438  

Journal: :JORS 2012
Ghasem Tohidi Shabnam Razavyan Simin Tohidnia

This paper proposes a global cost Malmquist productivity index, new cost Malmquist productivity index, that is circular and that gives a single measure of productivity change. The index is inspired by the global Malmquist productivity index as extended to productivity measurement. Decomposition of the proposed cost Malmquist productivity index is presented. Numerical results are presented for a...

2002
G. Tohidi S. Tohidnia

This study examines the productivity changes of decision making units in situation where input price vectors are varying between them and inputs are heterogeneous; that is a noncompetitive market. We present a directional measure of cost Malmquist productivity index where incorporates the decision maker's preference over productivity change over time. A simple numerical example is designed to i...

2006
F. Hosseinzadeh Lotfi

In this paper Malmquist productivity index(MPI) for decision making unit(DMU) with interval data has been evaluated.A method for assessing Malmquist productivity index using cost efficiency also has been developed.The applicability of the methods developed is illustrated in the context of the analysis of groups of teaching of university performance.

Journal: :international journal of mathematical modelling and computations 0
m. fallah jelodar department of mathematics, islamic azad university, firoozkooh branch, firoozkooh, iran. m. sanei department of mathematics, islamic azad university, firoozkooh branch, firoozkooh, iran. s. mamizadeh chatghayeh

the index is excellent by the malmquist index as extended to productivity measurement. the index developed here is defined in terms of input cost rather than input quantity distance functions in supply chain. therefore, we propose productivity change is decomposed into overall efficiency and cost technical change. these decompositions provide a clearer situation of the root sources of supply ch...

M. Fallah Jelodar M. Sanei S. Mamizadeh Chatghayeh

The index is excellent by the Malmquist index as extended to productivity measurement. The index developed here is defined in terms of input cost rather than input quantity distance functions in supply chain. Therefore, we propose productivity change is decomposed into overall efficiency and cost technical change. These decompositions provide a clearer situation of the root sources of supply ch...

Journal: :European Journal of Operational Research 2015

Journal: :European Journal of Operational Research 2006
Valentin Zelenyuk

In this paper we extend the work of Färe and Zelenyuk (2003) to find a theoretically justified method of aggregating Malmquist Productivity Indexes over individual decision making units (firms, countries, etc.) into a group Malmquist Productivity Index. We also consider the aggregation of decomposed parts of the Malmquist Productivity Index to obtain a decomposition of the Malmquist Productivit...

Journal: :journal of linear and topological algebra (jlta) 0
g tohidi department of mathematics, islamic azad university, central tehran branch, tehran, iran. s razavyan department of mathematics, islamic azad university, south tehran branch, tehran, iran. s tohidnia department of mathematics, islamic azad university, central tehran branch, tehran, iran.

in some data envelopment analysis (dea) applications, some inputs of dmus have negative values with positive cost. this paper generalizes the global cost malmquist productivity index to compare the productivity of di erent dmus with negative inputs in any two periods of times under variable returns to scale (vrs) technology, and then the generalized index is decomposed to several components. th...

2009
Mark J. Lee

The goal of this study examines the quantitative implications of the Malmquist index in a standard Real Business Cycle (RBC) model as a measure of technology shock. To achieve this, the paper first investigates the empirical validity of the equivalence proposition on the two technology shock measures: a relatively new Malmquist Index and the predominant Solow residual. On the basis of permutati...

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