著者
鳥居 昭夫
出版者
日本経済学会
雑誌
The Economic Studies Quarterly (ISSN:0557109X)
巻号頁・発行日
vol.38, no.3, pp.199-211, 1987-09-30 (Released:2008-02-28)
参考文献数
9

Samuelson-Modigliani developed the dual theorem by applying the neoclassical growth model. We should now ask whether the dual theorem is intrinsic to the macro growth theory or it depends on the neoclassical growth model. This paper examines the dual theorem rather in the Keynesian world. Our model assumes an independent Robinsonian investment function and the KeynesWicksell adjustment process. Our main result is: if the adjustment speed of the product price is faster than that of money wage rates, then the dual theorem does not hold for any magnitude of saving propensity, while it is true otherwise.
著者
鷲田 豊明 置塩 信雄
出版者
日本経済学会
雑誌
The Economic Studies Quarterly (ISSN:0557109X)
巻号頁・発行日
vol.38, no.3, pp.212-222, 1987-09-30 (Released:2008-02-28)
参考文献数
14

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
YOSHIO ITABA TOSHIAKI TACHIBANAKI
出版者
JAPANESE ECONOMIC ASSOCIATION
雑誌
The Economic Studies Quarterly (ISSN:0557109X)
巻号頁・発行日
vol.38, no.2, pp.97-106, 1987-06-20 (Released:2008-02-28)
参考文献数
11

This paper derived new measures of tax progressivity where the forms of initial income distribution and of tax function are given. We considered in particular the case in which initial income is distributed log-normally. Several forms of tax function are considered. Attention was paid to investigating whether the form of tax function is crucial in determining the degree of tax progressivity. We examined empilically not only the difference in the actual degrees of personal income tax progressivity between Japan and the U. S. but also the time-series change in the estimated tax progressivity in Japan. At the same time, a decomposition analysis, which was made feasible under our methodology, was attempted to estimate the contributions by income distribution factor and tax factor to an overall change in tax progressivity.