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21.
We generalize the usual notion of local sunspot equilibria. We say such equilibria exist around a steady state of an OLG economy whenever stationary sunspot equilibria of arbitrarily close economies exist within any neighborhood of the steady state. Unlike the usual notion, this generalization allows to address the following identification problem: Can an analyst distinguish empirically small fluctuations due to small shocks to the fundamentals from pure expectations-driven fluctuations? We study conditions under which these generalized local sunspot equilibria exist in OLG economies, and show that they may exist around not only indeterminate but also determinate steady states. 相似文献
22.
Summary. In this paper we re-examine generic constrained suboptimality of equilibrium allocations with incomplete numeraire asset
markets. We provide a general framework which is capable of resolving some issues left open by the previous literature, and
encompasses many kinds of intervention in partially controlled market economies. In particular, we establish generic constrained
suboptimality, as studied by Geanakoplos and Polemarchakis, even without an upper bound on the number of households. Moreover,
we consider the case where asset markets are left open, and the planner can make lump-sum transfers in a limited number of
goods. We show that such a perfectly anticipated wealth redistribution policy, though consistent with the assumed incomplete
financial structure, is typically effective.
Received: August 14, 1995; revised version: April 11, 1997 相似文献
23.
24.
In recent years, catastrophic disasters by massive earthquakes have been increasing in the world, and disaster management is required more than ever. In the case of disasters such as tsunamis, a slight delay in evacuation may deprive evacuees of life. In this article, we formalize the emergency evacuation planning model for evacuation from tsunamis and other disasters based on the idea of the universally quickest flow. We show that there does not always exist a universally quickest flow when the capacity constraint of refuges is taken into account. Therefore, we propose an alternative criterion that approximates a universally quickest flow, and presents an algorithm for finding an optimal flow for this criterion. Numerical experiments are carried out for the evacuation of a local city in Japan where tsunami damages are assumed to occur when a large earthquake occurs in the ocean nearby. 相似文献
25.
Portuguese Economic Journal - Using analytical methods they devised, the authors intend to study economic aspects of the racetrack economy described as a continuous-space version of the new... 相似文献
26.
Atsushi Iimi 《Review of Industrial Organization》2006,28(2):109-128
Auctions, which are applicable to aid-related procurement systems, have been recently recognized as an important tool for
improving economic efficiency. Using data on procurement auctions for Japanese official development assistance projects, the
equilibrium bid function is estimated. The data reveals that a 1% increase in the number of bidders decreases the equilibrium
bid by about 0.2%. This implies that strengthening competition at procurement auctions lowers contract prices and mitigates
the heavy indebtedness of developing countries. Auctions are also instrumental in fostering local business environment and
governance. For intensifying bidding competition, it is useful to introduce an electronic bidding system, encourage local
firms to jointly bid, and relax excessive qualification requirements. 相似文献
27.
Atsushi Iimi 《Journal of urban economics》2005,57(3):146
Although it is theoretically expected that decentralization leads to efficient provision of local public services and stimulates economic development, there is a mixed picture of the decentralization effect on economic growth across earlier empirical studies. Using the instrument variables (IV) technique with the latest cross-country data for the period from 1997 to 2001, this paper found that fiscal decentralization has a significant positive impact on per capita GDP growth. Therefore, when the focus is placed on the latest information on the economic situation in the latter 1990s, decentralization, particularly on the fiscal expenditure side, is instrumental in economic growth. 相似文献
28.
Skepticism toward traditional identifying assumptions based on exclusion restrictions has led to a surge in the use of structural VAR models in which structural shocks are identified by restricting the sign of the responses of selected macroeconomic aggregates to these shocks. Researchers commonly report the vector of pointwise posterior medians of the impulse responses as a measure of central tendency of the estimated response functions, along with pointwise 68% posterior error bands. It can be shown that this approach cannot be used to characterize the central tendency of the structural impulse response functions. We propose an alternative method of summarizing the evidence from sign-identified VAR models designed to enhance their practical usefulness. Our objective is to characterize the most likely admissible model(s) within the set of structural VAR models that satisfy the sign restrictions. We show how the set of most likely structural response functions can be computed from the posterior mode of the joint distribution of admissible models both in the fully identified and in the partially identified case, and we propose a highest-posterior density credible set that characterizes the joint uncertainty about this set. Our approach can also be used to resolve the long-standing problem of how to conduct joint inference on sets of structural impulse response functions in exactly identified VAR models. We illustrate the differences between our approach and the traditional approach for the analysis of the effects of monetary policy shocks and of the effects of oil demand and oil supply shocks. 相似文献
29.
The Yonmenkaigi System Method: An Implementation-Oriented Group Decision Support Approach 总被引:1,自引:0,他引:1
Norio Okada Jong-Il Na Liping Fang Atsushi Teratani 《Group Decision and Negotiation》2013,22(1):53-67
The Yonmenkaigi System Method (YSM) is presented as a participatory method to support group decision making. It is composed of four main steps: conducting a SWOT analysis, completing the Yonmenkaigi chart, debating, and presenting the group’s action plan. The YSM is an implementation and collaboration-oriented approach that incorporates the synergistic process of mutual learning, decision making and capacity building. It fosters small and modest breakthrough and/or innovative strategy development. The YSM addresses the issues of resource management and mobilization as well as effective involvement and commitment by participants and provides a strategic communication platform for participants. A case study for developing a disaster reduction action plan, carried out with a local community organization in the City of Kyoto, Japan, is used to demonstrate the characteristics of the YSM. 相似文献
30.
Atsushi Inoue 《Journal of econometrics》1999,90(2):1853
The conventional testing procedure may mislead one into accepting the null of no cointegration or the null of a cointegrating rank smaller than the true rank when there is a trend-break under the alternative hypothesis. This paper proposes tests for cointegrating rank that have power against the trend-break alternative. The proposed tests are applied to the US money demand function. The results support the Campbell–Perron conjecture: money, income and interest rates are cointegrated around a broken trend. 相似文献