Ownership structure, agency costs, specialization, and efficiency: analysis of Keiretsu and independent insurers in the Japanese nonlife insurance industry

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<subfield code="a">This article uses the nonparametric frontier method to examine differences in efficiency for three unique organizational forms in the Japanese nonlife insurance industry-keiretsu firms, nonspecialized independent firms (NSIFs), and specialized independent firms (SIFs). It is not possible to reject the null hypothesis that efficiencies are equal, with one exception</subfield>
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<subfield code="a">The Journal of risk and insurance</subfield>
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<subfield code="g">Volume 72, number 1, March 2005 ; p. 105-158</subfield>
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