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1
USING DUAL LINEAR PROGRAMS TO RESEARCH EFFICIENCY OF DECISION MAKING UNITS (DMU) WITH THE HELP OF THE DEA METHOD
100%
Predki A.
Przegląd Statystyczny
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2005
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tom 52
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nr 2
57-72
EN
In this article dual programs concerning the cost sphere are presented. In the first part, final form of the dual programs is derived. In the second part, exemplary interpretation of one of the programs is done. In the last part, empirical example of application of the dual programs is presented (based on real data from the Polish energy sector)
2
DEFINING GLOBAL AND LOCAL RETURNS TO SCALE WITHIN RESEARCH ON EFFICIENCY IN THE DEA APPROACH
100%
Predki A.
Przegląd Statystyczny
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2006
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tom 53
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nr 3
57-72
EN
In this article the definitions of global and local returns to scale (proposed in the DEA literature) are discussed. A new variant of the definitions of local returns to scale (increasing, decreasing or constant) is proposed. Its equivalence to the three practical methods found in the literature is proved. An empirical example (based on real data from the Polish energy sector) is presented
3
DUAL LINEAR PROGRAMS IN ANALYSIS OF THE REVENUE WITH THE HELP OF THE DEA METHOD
100%
Predki A.
Przegląd Statystyczny
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2007
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tom 54
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nr 1
94-108
EN
In this article dual programs concerning the revenue sphere are presented. In the first part, final form of the dual programs is derived. In the second part, interpretation of the programs is done . In the last part, empirical example of the dual programs is presented (based on real data from the Polish banking sector)
4
CONSTRUCTION RELATIVE MEASURE OF THE EFFICIENCY PRODUCTION UNITS BASED ON THE POTENTIAL AND REAL BENEFIT
100%
Predki A.
Przegląd Statystyczny
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2008
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tom 55
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nr 4
28-39
EN
In this article the efficiency of production unit is defined and measured using the potential and real benefit. Properties, defects and advantages of these measures are presented. Essential problems which arose with their construction are presented, too. In the iast part, the empirical example of application is given. (based on real data from the Polish bank sector). It illustrates the problem matter and presents numerous important interpretations of results received.
5
Content available Metoda DEA w badaniu efektywności nadleśnictw
63%
Mlynarski W. , Predki A.
Sylwan
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2017
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tom 161
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nr 12
EN
The aim of this paper was to evaluate the financial and economic resources efficiency of forest districts in the years 2008−2012 using a nonparametric approach of the Data Envelopment Analysis (DEA). DEA is a linear programming based method for evaluating the performance of comparable production units such as firms. The relative efficiency of compared forest districts is calculated with the Variable Returns to Scale (VRS) model. Although the method is already extensively applied in many areas of economics, its use in forestry remains limited. We studied 110 forest districts from Wrocław, Katowice, Kraków and Krosno regional directorates of the State Forests. The research was conducted in groups of forest districts according to the similar forest site type, which ensured the homogeneity of the units and the comparability of research results. Two categories of the forest districts were identified: ‘lowland' and ‘upland−mountain' ones. The study covered selection of input (efforts) and output (results) variables as well as selection of appropriate DEA model, which were used to evaluate technical efficiency of the forest districts. Within the so−called model of economic resources they were quantified in technical units, whereas in a financial model – in value terms. The research shows differences in the use of economic and financial resources by the analyzed forest districts. The ‘lowland' were more effective than ‘upland−mountain' ones both in terms of the use of the financial and economic resources. Average relative efficiency in a financial model for the ‘lowland' forest districts amounts to 0.896, while for the ‘upland−mountain' ones – to 0.839. In economic resources model this parameter equals 0.853 and 0.823, respectively. The DEA method may be an alternative or complementary to other methods of evaluation of the forest district efficiency. Any attempt of such analysis may be very valuable support in the forest management.
6
Content available Pomiar efektywności publicznych szkół wyższych za pomocą metod DEA, SFA oraz StoNED
63%
Brzezicki Ł. , Predki A.
Wiadomości Statystyczne
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2018
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tom 63
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nr 05
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