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MASATOSHI YOSHIDA 《The Japanese Economic Review》1996,47(3):297-312
In this paper, we explore the social rate of discount for public investment in a monetary overlapping generations model which allows for market disequilibria arising from price and wage rigidities. Financing public investment with a lump-sum tax on the younger generation, borrowing and money supply, the government maximizes the sum of generational utilities discounted by a social rate of time preference. For the social welfare optimum, it is required to take the boundary-maintaining policy by making demand for output equal to supply. In a stationary state, we show that (i) the social rate of discount on the Keynesian-repressed inflation boundary should be the weighted average of the social rate of time preference and the market rate of interest, the weights depending on the amount of private investment crowded out by public investment, and (ii) on the Keynesian-classical boundary it should be a modified version of the weighted average rule, containing an extra term which represents the marginal opportunity cost of public investment through its impact on labour employment. 相似文献
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We examine the role of borrower concerns about future credit availability in mitigating the effects of adverse selection and income misrepresentation in the mortgage market. We show that the majority of additional risk associated with “low‐doc” mortgages originated prior to the Great Recession was due to adverse selection on the part of borrowers who could verify income but chose not to. We provide novel evidence that these borrowers were more likely to inflate or exaggerate their income. Our analysis suggests that recent regulatory changes that have essentially eliminated the low‐doc loan product would result in credit rationing against self‐employed borrowers. 相似文献
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YUICHIRO YOSHIDA 《The Japanese Economic Review》2011,62(3):401-424
This paper uses a spatial model to analyse first‐ and second‐best policies, impacts of privatization and vertical disintegration of a congestible highway with elastic demand. The paper also uses simulation methods to analyse the welfare cost of a uniform‐toll constraint. Results show, inter alia, that the social optimum requires the marginal cost of highway extension to be equal to the net consumer benefit at the boundary, while in the second‐best case the aggregate user cost must be measured in terms of the shadow price. In turn, a profit‐maximizing firm equates the marginal extension cost to the markup revenue at the boundary. 相似文献
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MASATOSHI YOSHIDA 《The Japanese Economic Review》1995,46(4):383-397
An interest income tax and a publicly provided private good are introduced into the Hamada overlapping-generations model consisting of heterogeneous individuals where the government can use a wage-income tax, an identical lump-sum transfer, and the public debt. Two interesting problems are studied: (a) what relation exists between the optimal interest rate and the population-growth rate and (b) how dynamic efficiency affects the optimal-decision rules of taxes and the publicly provided good. We show that (i) if the government can (not) tax the interest income, then the optimal interest rate is (not) equal to the population-growth rate, (ii) without the availability of the interest tax the difference between these two rates is mainly caused by the income-distribution effect of the public debt and (iii) the dynamic efficiency effects on the optimal rules of the wage tax and the publicly provided good depend on not only such a difference but also the average substitute-complement relations among leisure, the second-period consumption and the publicly provided good. 相似文献
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We examine how Japanese health insurance societies finance (or distribute) the costs (or cost savings) from an increase (or decrease) in contributions to the Health Service Systems for the Elderly. Three ways are possible: (i) adjusting the premiums of the employee or employer; (ii) providing an optional benefit; and (iii) adjusting reserves by the change in contribution. We find that more than six‐sevenths of the changes are associated with changes in reserves, followed by premiums, and finally optional benefits. The increase in the premium mostly shifted to employees, while employees enjoyed a nearly 60% decrease in total premium. 相似文献
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We develop a quantitative costly price adjustment model with capital formation for the Japanese economy. The model respects the zero interest rate bound and is calibrated to reproduce the nominal and real facts from the 1990s. We use the model to investigate the properties of alternative monetary policies during this period. The setting of the long‐run nominal interest rate in a Taylor rule is much more important for avoiding the zero bound than the setting of the reaction coefficients. A long‐run interest rate target of 2.3% during the 1990s avoids the zero bound and enhances welfare. 相似文献
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