New Economics Papers
on Efficiency and Productivity
Issue of 2005‒06‒05
two papers chosen by

  1. A Data Envelopment Analysis Approach to the Assessment of Natural Parks’ Economic Efficiency and Sustainability. The Case of Italian National Parks By Valentina Bosetti; Gianni Locatelli
  2. Productivity, Efficiency, Scale Economies and Technical Change: A New Decomposition Analysis By Jiro Nemoto; Mika Goto

  1. By: Valentina Bosetti (Fondazione Eni Enrico Mattei); Gianni Locatelli (DISCo, Università di Milano Bicocca)
    Abstract: Wilderness protection is a growing necessity for modern societies, and this is particularly true for areas where population density is extremely high, as for example Europe. Conservation, however, implies very high opportunity costs. It is thus crucial to create incentives to efficient management practices, to promote benchmarking and to improve conservation management. In the present paper we propose a methodology based on Data Envelopment Analysis, DEA, a non parametric benchmarking technique specifically developed to assess the relative efficiency of decision-making units. In particular, the objective of the discussed methodology is to assess the relative efficiency of the management units of the protected area and to indicate how it could be improved, by providing a set of guidelines. The main advantage of this methodology is that it allows to assess the efficiency of natural parks’ management not only internally (comparing the performance of the park to itself in time) but also by external benchmarking, thus providing new and different perspectives on potential improvements. Although the proposed methodology is fairly general, we have applied it to the context of Italian National Parks in order to produce a representative case study. Specifically, the choice of adequate cost and benefit indicators is a very important and delicate phase of any benchmark analysis. For this purpose, a questionnaire was used to investigate the opinions of Italian National Parks managers and stakeholders and to define the relevant indicators for the analysis. Finally, relevant policy implications for the case study are given.
    Keywords: Data envelopment analysis, Natural park management
    JEL: Q01 Q26 Q56
    Date: 2005–05
  2. By: Jiro Nemoto; Mika Goto
    Abstract: This paper aims to examine the productivity change of the Japanese economy using the data pertaining to the 47 prefectures during the period 1981-2000. The decomposition analysis of the Hicks-Moorsteen-Bjurek productivity index is conducted to explore the sources of the productivity change. In summary, technical change and efficiency change are two of the most important components driving procyclical productivity. We find that their relative importance varies over periods. Supply shocks captured by technical change component caused upturns in productivity in the mid and late 80s and in 1999 and 2000. Supply shocks also caused downturns in the early and mid 90s. On the other hand, demand shocks captured by the efficiency change component drove upturns of productivity in 1984, 1990, and 1996 when supply shocks were not detected.
    JEL: C43 D24 O47
    Date: 2005–05

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