Kyushu University · Economics, Econometrics and Finance
Professor Hidemichi Fujii's research lab specializes in environmental and productivity analysis, focusing on the integration of economic performance with environmental sustainability across various sectors. The lab employs advanced data envelopment analysis (DEA) models—particularly the weighted Russell directional distance model—to evaluate efficiency and productivity in industries, banking, wastewater management, and forest ecosystem services. Research directions emphasize pollution abatement, regional disparities in environmental performance, and the drivers of technological innovation in biotechnology and industrial emissions. The lab also conducts decomposition analysis to identify key factors behind changes in environmental and economic outcomes.
Figures are computed from collected data and may differ slightly.
Abstract The objective of this study is to calculate and decompose productivity incorporating multi‐environmental pollutants in C hinese industrial sectors from 1992 to 2008. We apply a weighted Russell directional distance model to calculate productivity from both the economic and environmental performance. The main findings are: (1) C hinese industrial sectors increased productivity, with the main contributing factors being labor saving prior to 2000; (2) The main contributing factors for prod
The objective of this study is three-fold. First we estimate and analyse bank efficiency and productivity changes in the EU28 countries with the application of a novel approach, a weighted Russell directional distance model. Second, we take a disaggregated approach and analyse the contribution of the individual bank inputs on bank efficiency and productivity growth. Third, we test for convergence in EU28 bank productivity as well as in the inefficiency of individual bank inputs. We find that ban
This study analyzes industrial wastewater management efficiency using a Chinese provincial dataset from 2004 to 2014. The weighted Russell directional distance model is used to evaluate the efficiency of management practices. Determinants analysis was conducted based on governmental policy, pollution abatement, and market factors to identify the main drivers of industrial wastewater management efficiency in China. The results indicate that the wastewater management efficiency improved in the eas
Forest ecosystem services are fundamental for human life. To protect and increase forest ecosystem services, the driving factors underlying changes in forest ecosystem service values must be determined to properly implement forest resource management planning. This study examines the driving factors that affect changes in forest ecosystem service values by focusing on regional forest characteristics using a dataset of 47 prefectures in Japan for 2000, 2007, and 2012. We applied two approaches: a
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