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11.
Extreme co-movement and extreme impact problems are inherently stochastic control problems, since they will influence the decision taken today and ultimately influence a decision taken in the future. Extreme co-movements among financial assets have been reported in the literature. However, extreme impacts have not been carefully studied yet. In this paper, we use the newly developed methodology to further explore extreme co-movements and extreme impacts in financial market. Particularly, two FX spot rates are studied. Based on the results of our analysis with FX returns, we conclude that there exist extreme co-movements and extreme impacts in FX returns and care has to be taken when we employ portfolio optimization models, especially models without the ability of handling extreme dependencies. 相似文献
12.
Kazuhiko Nishimura 《Metroeconomica》2008,59(2):110-130
This paper considers recycling systems in which producers and a monopolistic recycler are independent agents, while the design of products determined by the producer affects the recycler's productivity. It is found that such design effects could be internalized within the economy, if the monopolistic recycler pays the normative values of the wasted products according to their designs, while the producers formulate design so as to minimize the product's net price. However, if unfortunate, the equilibrium may fall into a local optimum and may not be stable. We also investigate how such property of the equilibrium could be changed if the recycler's productivity is influenced by the diversity in recycle design. 相似文献
13.
Mohammed Y.A. Rawwas Author Vitae Kazuhiko Konishi Author Vitae Shoji Kamise Author Vitae Jamal Al-Khatib Author Vitae 《Industrial Marketing Management》2008,37(1):104-115
In January 1995, the Kobe earthquake devastated a major part of Kobe's distribution infrastructure. Apart from the expected complaints about lost sales, wholesalers reported some surprising comments after the reopening. Wholesalers stressed the advantages of newly designed distribution channels, especially the opportunity to end longstanding business relationships known as keiretsu. This study is concerned with the recent development of vertical collaboration in the Japanese distribution channel. Multiple regression analysis revealed that the supplier's service to wholesaler, the supplier's offerings to the wholesaler, and buyer's service to the wholesaler did contribute to the enhancement of the performance of the wholesaler. The three factors explained 16% of the wholesaler's performance. The regression analysis also showed that the wholesaler's intra-logistics activities contributed to the improvement of the performance of the wholesaler and explained 5% of its performance. 相似文献
14.
Etsuko Nishimura Akio Imai Gerrit K. Janssens Stratos Papadimitriou 《Transportation Research Part E: Logistics and Transportation Review》2009,45(5):771-786
This study addresses the storage arrangement of transshipment containers on a container yard, in order to carry out efficiently the ship handling operations at a terminal where mega-containerships call. An optimization model is specified to investigate the flow of containers from the mega-containership to feeder ships using intermediate storage at the yard. A heuristic based on the lagrangian relaxation is formulated. The quality of the heuristic approach is tested in a number of experiments. In the experiments, various situations are analyzed with respect to mega-containership arrival rates, some strategies for stack arrangements and terminal layouts. 相似文献
15.
Kazuhiko Ohashi 《The Japanese Economic Review》1999,50(1):75-95
The paper examines the optimal innovation of securities by an issuer who is endowed with several risky assets and private information on one of the assets. Assuming that the degree of asymmetric information between the issuer and the outside investor is large, we show that the issuer restricts the number of securities that he creates. We also show that the payoff of the security created by the issuer is not closely correlated, and is sometimes completely uncorrelated, with the payoff of the asset that is subject to the asymmetric information, depending on the hedging needs and the accuracy of information.
JEL Classification Numbers: D52, D82, G20. 相似文献
JEL Classification Numbers: D52, D82, G20. 相似文献
16.
Kazuhiko Mikami 《Economic Systems》2010,34(2):178-197
Cooperative firms are commonly thought to be financially weak and unable to flourish in the market economy. This paper addresses the idea that a consumer cooperative issues a membership, which represents an ownership share in the cooperative, as a method of procuring equity capital. It then shows that, in theory, consumer cooperatives are not necessarily financially weaker than investor-owned firms in the presence of a membership market. This implies that the consumer cooperative is potentially a promising alternative to the investor-owned firm when the latter type of firm induces serious market failure in the product market. 相似文献
17.
Jean-Michel Grandmont Kazuo Nishimura Makoto Yano 《International Journal of Economic Theory》2008,4(2):137-149
Professor Takashi Negishi has made fundamental contributions to economic theory on an extremely broad range of topics. As the editors of this special issue, we feel extremely fortunate that each of us has worked on topics with respect to which Professor Negishi's influences have been particularly large. In this introductory article, each of us will discuss Professor Negishi's influence on the topic we are most familiar with. For the entire spectrum of his research, readers are referred to the list of Professor Negishi's publications presented at the end of this article. 相似文献
18.
First we treat a three-dimensional continuous time abstract stationary model that includes one predetermined variable and two non-predetermined variables. We construct stationary sunspot equilibria in this model under the following two alternative conditions: (i) a steady state has two stable roots and one unstable root; and (ii) A closed orbit has a two-dimensional manifold on which it is asymptotically stable. Next, we apply these results to the models due to Lucas and Romer that undergo Hopf bifurcations for some parameter values. We construct sunspot equilibria in these models. 相似文献
19.
We study the underlying structure of the two‐dimensional dynamical system generated by a class of dynamic optimization models that allow for intertemporal complementarity between adjacent periods, but preserve the time‐additively separable framework of Ramsey models. Specifically, we identify conditions under which the results of the traditional Ramsey‐type theory are preserved even when the intertemporal independence assumption is relaxed. Local analysis of this theme has been presented by Samuelson (Western Economic Journal 9 (1971), 21–26). We establish global convergence results and relate them to the local analysis, by using the mathematical theory of two‐dimensional dynamical systems. We also relate the local stability property of the stationary optimal stock to the differentiability of the optimal policy function near the stationary optimal stock, by using the Stable Manifold Theorem. 相似文献
20.
We study a model of optimal dynamic behavior in which the intertemoral preferences preserve the time additively separable framework of Ramsey models, while exhibiting Edgeworth–Pareto complementarity between consumption in adjacent periods. We identify economic environments in which global optimal dynamics under intertemporal complementarity exhibits persistent fluctuations even though the misspecified Ramsey-type theory, under the intertemporal independence assumption, predicts monotone convergence. 相似文献