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영어

This study analysis and measure X-inefficiency of manufacturing industries by using the Thick Frontier Analysis model. The most efficiency study is limited on the service and the non-profit industries, this study extends the X-inefficiency analysis to the manufacturing industries.The output variables of Thick Frontier Analysis are sales, income before extraordinary items, and input variables are employee, fixed assets, raw materials. The factor prices are labor price and capital price.Test this study using a sample of 5 industries from 1992 to 1997.Results of this study can be summarized as follows. It turned out that the X-efficiency of the chemicals and chemical products is the higher 30% and the electronic components, communication equipment is the lower 9%. The amount of changes in the X-efficiency, measured by the TFA model, in all manufacturing industries turns out to be negative on the average.This results are expected to provide the empirical evidence useful to enhancing the competitiveness of manufacturing firms in korea.