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著者
岸本 哲也
出版者
日本経済学会
雑誌
季刊 理論経済学 (ISSN:0557109X)
巻号頁・発行日
vol.36, no.3, pp.263-264, 1985-12-26 (Released:2007-10-18)
著者
鷲田 豊明 置塩 信雄
出版者
JAPANESE ECONOMIC ASSOCIATION
雑誌
The Economic Studies Quarterly (ISSN:0557109X)
巻号頁・発行日
vol.38, no.3, pp.212-222, 1987

Contrary to the static theories of investment, Keynes stated in the General Theory that the reduction of expected money-wage-rates in the future would reduce the investment in quantity. This assertion, however, cannot be supported by the Neo-classical theories such as Jorgenson models or adjustment models of investment. We construct his model described in the General Theory. The main character is that the models have the capital equipment with finite operating periods. Certainly, his models support the assertion in the simplest case. Moreover, we can see that more generalized models do not necessarily support them.
著者
鷲田 豊明 置塩 信雄
出版者
JAPANESE ECONOMIC ASSOCIATION
雑誌
The Economic Studies Quarterly (ISSN:0557109X)
巻号頁・発行日
vol.38, no.3, pp.212-222, 1987

Contrary to the static theories of investment, Keynes stated in the General Theory that the reduction of expected money-wage-rates in the future would reduce the investment in quantity. This assertion, however, cannot be supported by the Neo-classical theories such as Jorgenson models or adjustment models of investment. We construct his model described in the General Theory. The main character is that the models have the capital equipment with finite operating periods. Certainly, his models support the assertion in the simplest case. Moreover, we can see that more generalized models do not necessarily support them.
著者
KAZUMITSU NAWATA
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.339-346, 1994-12-20 (Released:2007-10-19)
参考文献数
10

In recent economic studies, Tobit models, in which the dependent variables cannot be negative, have been widely used. Although these models are usually estimated by the Tobit Maximum Likelihood Estimator (Tobit MLE), the Tobit MLE is not robust with respect to heteroskedasticity and non-normality of the error terms.Powell (1984) proposed a modified least absolute deviations estimator which is consistent under heteroskedasticity and non-normality. One of the major problems with Powell's estimator is its computational difficulty. Nawata (1992) proposed a new algorithm which makes possible to calculate Powell's estimator. However, Nawata's method is incomplete and sometimes gives wrong results. In this paper, I modify the algorithm and evaluate Powell's estimator by the Monte Carlo experiments styled after Paarsch (1984).
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

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.