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An Examination of the efficiency of Polish public sector entities based on public prosecutor offices

Guzowska M., Strąk T.

Operations Research and Decisions

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2010

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Vol. 20, No. 2

41-57

EN

This article presents results of research on the efficiency of public prosecution organizational units by means of the DEA method. The study covered 45 public prosecution regions, whose technical and cost efficiency were analyzed. It also examined the impact of the returns-to-scale effect on their overall efficiency. Additionally, the authors present potential savings that could be achieved if units considered to be inefficient improved their efficiency. The results obtained show that the DEA method is very useful in analyzing the efficiency of public sector entities when a given service is rendered by more than ten such entities.

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Koncentracja działalności sektora bankowego w Polsce w latach 1995-2002

Guzowska M., Kisielewska M.

Zeszyty Naukowe. Prace Instytutu Ekonomiki i Organizacji Przedsiębiorstw / Uniwersytet Szczeciński

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2006

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Nr 47

189--197

EN

The banking sector in Poland forms a competitive market with over 60 participants by the end of 2004. However, the number of banks is declining during the last decade as at the mid of 80. the sector encompassed over 80 entities. Some of the industry analysts forecast for the nearest future there only will remain several global financial institutions. This paper provides a study of concentration of Polish banking sector. Commonly accepted measures of market concentration such as: Concentration Ratio (CR), Rosenbluth Index, Gini Coefficient, Herfindahl-Hirschman Index (HHI) and Entropy Measures have been employed.

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Efektywność polskiego sektora bankowego w latach 1995-2002

Nellis G. J., Zarzecki D., Guzowska M., Kisielewska M.

Zeszyty Naukowe. Prace Instytutu Ekonomiki i Organizacji Przedsiębiorstw / Uniwersytet Szczeciński

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2005

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Nr 42

101-114

EN

This paper analyses the performance of the Polish banking industry since the mid-1990s in order to assess the extent to which efficiency has improved. DEA is employed to examine the cost structure, profitability and thus the efficiency of the commercial banks. The results have implications for the future of the industry as it adapts to the new competitive pressures which will inevitably result from Poland's membership of an enlarged Single European Banking sector.

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Analityczna postać tablicy wartości krytycznych rozkładu D(n) + max(d(n+),d(n-))

Guzowska M.

Zeszyty Naukowe. Acta Mathematica Pomeranica / Uniwersytet Szczeciński

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1999

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Nr 4

5-17

EN

The paper present the attempt of building the analytical function which generates the table of critical values D(n) = max(d(n+),d(n-)) of the Kolmogorov test. It turned out that this functon is proper for the significance level L=0,05, L=0,10, L=0.01. This analytical function could be useful in testing of small samples (n<100).