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51.
In a social choice context, we ask whether there exists a rule in which nobody loses under trade liberalization. We consider a resource allocation problem in which the traded commodities vary. We propose an axiom stating that enlarging the set of tradable commodities hurts nobody. We show that if a rule satisfies this axiom, together with an allocative efficiency axiom and an institutional constraint axiom stating that only preferences over tradable commodities matter, gains from trade can be given to only one individual in the first step of liberalization. 相似文献
52.
There is no Pareto efficient allocation rule which always encourages economic integration. Further, for any efficient rule treating indistinguishable agents identically in welfare terms, there is an economy in which a third of the agents are hurt upon integration. 相似文献
53.
Masahiro Hori Koichiro Iwamoto Takeshi Niizeki Fumihiko Suga 《The Japanese Economic Review》2016,67(4):474-494
Using two household surveys, this paper investigates whether the saving rates of richer households are higher than those of poorer households in Japan. We construct a number of proxies for lifetime wealth, including those original to this study, and find marginally positive correlations between saving rates and lifetime wealth for working age households. We further find that the relationship between saving rates and lifetime wealth differs depending on the life stage of individual households. Older households with higher lifetime wealth appear to be dissaving to some extent, which is more or less consistent with the lifecycle model of consumption. 相似文献
54.
River floodplains are significant environmental resources in that they provide multiple ecosystem services. However, river floodplains are/tend to be overdeveloped because indirect-use values linked with ecosystem services are overlooked by private landowners. In a case study of the Ouse catchment, it turns out that river floodplains tend to be overdeveloped in upstream areas because of a unidirectional spatial externality. We set a simple model that considers both direct- and indirect-use values to analyse the social optimisation. The essential point is that we must consider two types of environmental externalities related to the ecosystem services of river floodplains to make decisions on floodplain development. First, the development of river floodplains has opportunity costs in terms of lost ecosystem services. Second, the development of floodplains increases flood risks to people downstream (imposes a unidirectional spatial external costs). Theoretically, we can easily deal with the problem by zonal economic policies: zonal taxes or subsidies (price policies) and zonal marketable permits or transferable development rights (quantity policies). On the practical side, however, there are so many problems. Then, such approaches are too complex to use. First of all, we have to specify real complicated economic and physical systems which show non-linearity, irreversibility, site-specific relationships, and inter-dependency between systems and sites. Secondly such policies should be ‘zonal’, which might impose substantial transaction costs. In order to apply them to real situations, we have to determine the appropriate number of zones, their sizes and geographical shapes, and then set appropriate rates or amounts of permits in each zone. Furthermore, the determination of zones is difficult because of the trade-off between the internalisation of externalities and implementation costs of policies, which are also related to political frictions and market failure. 相似文献
55.
Chuntao Wu Carolin Funck Yoshitsugu Hayashi 《International Journal of Tourism Research》2014,16(6):546-555
This paper investigates local groups’ opinions on interpreting a dark heritage site for the promotion of tourism and analyzes their roles in tourism activities, through a case study of Hiroshima, Japan. As the first city suffered nuclear bombing, Hiroshima is a primary tourism destination in Japan but faced the challenge of revitalization. Fieldwork investigation methods, including semi‐structured interviews, were applied. The results suggest that local people hold favorable attitudes toward tourism development. They conduct an alternative approach to rejuvenating Hiroshima by identifying the essence of the place – a cheerful and peaceful city – and incorporating it into tourism events. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
56.
EVALUATING HEDGING ERRORS: AN ASYMPTOTIC APPROACH 总被引:1,自引:0,他引:1
We propose a methodology for evaluating the hedging errors of derivative securities due to the discreteness of trading times or the observation times of market prices, or both. Utilizing a weak convergence approach, we derive the asymptotic distributions of the hedging errors as the discreteness disappears in several situations. First, we examine the hedging error due to discrete-time trading when the true strategy is known, which generalizes the result of Bertsimas, Kogan, and Lo (2000) to continuous Itô processes. Then we consider a data-driven strategy, when the true strategy is unknown. This strategy is free of parametric model assumptions, therefore it is expected to serve as a benchmark for the evaluation of parametric strategies. Finally, we consider a case study of the Black-Scholes delta-hedging strategy when the volatility is unknown in the proposed framework. The results obtained give us a prospect for further developments of the framework under which various parametric strategies could be compared in a unified manner. 相似文献
57.
The author proposes a new single-stock generalization of the Black-Scholes model. The stock price process is Markovian, the volatility is time-varying, and the market is complete. We also consider the option pricing based on our model and a connection with the equilibrium theory. 相似文献
58.
This paper constructs a multi-sector model to take explicit account of the very sharp change in the relative price between non-IT and IT goods. The model is calibrated to the Japanese economy, and its solution path from 1990 on is compared to Japan's macroeconomic performance in the 1990s. Compared to the one-sector analysis of Japan in the 1990s [Hayashi, F., Prescott, E.C., 2002. The 1990s in Japan: A lost decade. Rev. Econ. Dynam. 5, 206–235], our model does slightly better or just as well in accounting for Japan's output slump and does worse in accounting for the capital–output ratio. We also show that, to revive a 2% long-term growth in per capita GDP, Japan needs to direct 10% of private total hours to the IT sector. J. Japanese Int. Economies 19 (4) (2005) 543–567. 相似文献
59.
Stopping with anticipated regret 总被引:1,自引:0,他引:1
This paper analyzes a stopping problem where the decision maker is driven by anticipated ex-post regret. There are two sources of potential dynamic inconsistency, one is arrival of information and the other is changing choice opportunities over time—discarding the current stopping option may change how she stops the game in the future.First we consider a naive planner who prescribes a commitment solution, and illustrate the nature of the inconsistency problem. Then we consider a sophisticated planner who plays backward induction against her ‘successive selves’. The resolution of dynamic inconsistency does not in general allow the use of standard dynamic programming technique. We provide, however, a simple characterization of the backward induction strategy, which is given in a recursive formula.We also provide a behavioral implication, that larger indeterminacy of belief may lead to a more aggressive behavior, that is, continuing the gamble longer, which contrasts to the implication of ambiguity aversion. 相似文献
60.
Laura Santini James T. Areddy Yuka Hayashi 《海外经济评论》2008,(6):35-37
在美国联邦储备委员会(Fed)22日出人意料地宣布大幅减息的决定后,亚洲股市23日展开反弹。不过,股市的强劲表现并未给大型机构投资者带来多少喜悦,他们担心经济萧条的阴云会令美国消费者捂紧钱袋,不再踊跃购买亚洲出口商品。 相似文献