著者

KAZUHIKO MIKAMI KEIZO MIZUNO

出版者

JAPANESE ECONOMIC ASSOCIATION

雑誌

The Economic Studies Quarterly (ISSN:0557109X)

巻号頁・発行日

vol.45, no.4, pp.347-352, 1994-12-20 (Released:2007-10-19)

参考文献数

3

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This note analyses product diversity under increasing returns to scale. We employ, in a general equilibrium framework, the model of Perloff and Salop (1985), which synthesizes Hotelling-type and Chamberlin-type models. The main result in the paper provides an instance of the excess diversity of a product, and its interpretation is illustrated diagrammatically.

著者

KAZUHIKO MIKAMI

出版者

JAPANESE ECONOMIC ASSOCIATION

雑誌

The Economic Studies Quarterly (ISSN:0557109X)

巻号頁・発行日

vol.42, no.3, pp.213-223, 1991-09-20 (Released:2007-10-19)

参考文献数

15

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This paper considers the relationship between the quality of product and the market structure, under the assumption that the demand price of the good is increasing in its quality. Then we investigate the welfare effects of three types of quality regulation based on the surplus analysis.

著者

KAZUHIKO MIKAMI

出版者

JAPANESE ECONOMIC ASSOCIATION

雑誌

The Economic Studies Quarterly (ISSN:0557109X)

巻号頁・発行日

vol.41, no.3, pp.259-269, 1990-09-20 (Released:2007-10-19)

参考文献数

15

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This paper considers a trade-off between efficiency and equity which results from a commodity tax reform. First we derive a theoretical proposition which characterizes the efficiency effect and the equity effect brought about by a tax reform. Then, we apply the theoretical result to Japanese liquor tax structure and calculate the welfare variation caused by a tax reform.