DEAとInverted DEAのノンパラメトリック検定を用いた JR 本州3社とJR3島会社の事業活動効率に対する大手私鉄との比較検証

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  • The relative efficiency evaluation for the JR 's Honshu 3-companies and the JR’s 3-islands companies with Japan's major private railway companies by using the non parametric test of DEA and Inverted DEA

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Abstract

Departmental Bulletin Paper

This study evaluates the relative efficiencies of Japan Railway companies (hereinafter“JRs” and Japan's major private railway companies (hereinafter“Private Railways”), using various types of DEA (Data Envelopment Analysis). As the ninth report , this paper verifies the effects on the privatization and separation of JNR ( Japan National Railways) to the relative efficiency and inefficiency of JRs and Private Railways by using the parametric and nonparametric test of DEA and Inverted DEA (Inverted Data Envelopment Analysis). More specifically, in this paper, the first step of the evaluation of the relative efficiencies and inefficiencies to the productivity and others of each JR and Private Railways for a total of 19 years after the privatization and separation of JNR by using DEA and Inverted DEA. The second step of the verification of the effects on the privatization and separation of JNR to the productivity and others of the JR's Honshu 3-companies (East Japan Railway, Central Japan Railway and West Japan Railway) and Private Railways by using the parametric and nonparametric test of DEA and Inverted DEA are clarified. The third step of the verification of the effects on the privatization and separation of JNR to the productivity and others of the JR's 3-islands companies (Hokkaido Railway, Shikoku Railway and Kyushu Railway) and Private Railways, by using the parametric and nonparametric test of DEA and Inverted DEA are clarified. The verification of the effects on the privatization and separation of JNR of the productivity and others of the JR's Honshu 3-companies and the JR's 3-islands companies were identified statistically.

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