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排序方式: 共有71条查询结果,搜索用时 15 毫秒
1.
Model predictive control with proportional transactions costs provides a good approximation to the optimal trading strategy 相似文献
2.
In this paper, we analyze the determinants of corporate saving in the form of changes in cash holdings for 11 Asian economies using firm‐level data from the Oriana Database for the 2002–2011 period. We find some evidence that cash flow has a positive impact on the change in cash holdings (i.e. that the cash flow sensitivity of cash is positive) and that the positive impact of cash flow on the change in cash holdings is larger and more significant in the case of smaller and presumably more constrained firms than in the case of larger and presumably less constrained firms in both developed and developing economies. Both of these findings corroborate the importance of financial constraints in Asian firms. In addition, we find that the cash flow sensitivity of cash declined after the global financial crisis and that Tobin's q has a positive impact on the change in cash holdings, especially in the case of larger and presumably unconstrained firms. 相似文献
3.
This paper considers the object allocation problem introduced by Shapley and Scarf (J Math Econ 1:23–37, 1974). We study secure
implementation (Saijo et al. in Theor Econ 2:203–229, 2007), that is, double implementation in dominant strategy and Nash
equilibria. We prove that (1) an individually rational solution is securely implementable if and only if it is the no-trade solution, (2) a neutral solution is securely implementable if and only if it is a serial dictatorship, and (3) an efficient solution is securely implementable if and only if it is a sequential dictatorship. Furthermore, we provide a complete characterization
of securely implementable solutions in the two-agent case: a solution is securely implementable if and only if it is either
a constant solution or a serial dictatorship. 相似文献
4.
5.
Charles Yuji Horioka 《The Japanese Economic Review》2002,53(1):26-54
I analyse a variety of evidence for Japan and, where available, for the United States on bequest practices, the importance and nature of bequest motives, bequest division, the willingness of individuals to help others, etc., in order to shed light on which model of household behaviour applies in the two countries. My results suggest that the selfish lifecycle model is the dominant model of household behaviour in both countries but that it is far more applicable in Japan; that the dynasty model is also more applicable in Japan but is not of dominant importance even there; and, conversely, that the altruism model is far more applicable in the USA. JEL Classification Numbers: D12, D64, D91, E21. 相似文献
6.
7.
Yuji Kubo 《World development》1985,13(12):1287-1298
This paper compares the patterns of intermediate input use, the levels of overall and domestic industrial linkages, and the role of imported intermediate goods in production among nine countries and over time, based on input-output data. Evidence on distinct differences in overall interindustry linkages and import contents between Korea and Taiwan on the one hand and Turkey, Colombia, and Mexico on the other are presented. The differences are then related to the differences in export structure and in trade and industrial policies adopted in each country. 相似文献
8.
The impact of e-commerce: It always benefits consumers, but may reduce social welfare 总被引:1,自引:0,他引:1
Yuji Nakayama 《Japan and the World Economy》2009,21(3):239-247
This paper investigates the impact of e-commerce on social welfare using a linear city model. Our model incorporates the diversity of consumers such that some can purchase the good via the Internet while others cannot. Our main result is as follows. The appearance of e-commerce enhances retail competition and always increases consumer surplus. However, total surplus does not necessarily improve. This is because the equilibrium market division between conventional stores and e-commerce is not socially optimal and efficiency loss of distribution accrues if the population of Internet shoppers is small and/or the cost of e-commerce is high. Our theoretical results indicate that the small e-commerce market share in the Japanese and US economies may result in welfare loss. 相似文献
9.
In this paper, we study the price of a long term Asian option the pay-off of which is determined by the average price of the
underlying asset during the last fixed number of days of its life. As one can imagine, it converges to the price of a plain
vanilla option as the time to maturity increases. We explicitly obtained the asymptotic difference which will be useful for
computing the price of Asian option in practice. 相似文献
10.
Yuji Yamada 《Asia-Pacific Financial Markets》2012,19(2):149-179
In this paper, we consider an optimal hedging problem for multivariate derivative based on the additive sum of smooth functions
on individual assets that minimize the mean square error (or the variance with zero expected value) from the derivative payoff.
By applying the necessary and sufficient condition with suitable discretization, we derive a set of linear equations to construct
optimal smooth functions, where we show that the computations involving conditional expectations for the multivariate derivatives
may be reduced to those of unconditional expectations, and thus, the total procedure can be executed efficiently. We investigate
the theoretical properties for the optimal smooth functions and clarify the following three facts: (i) the value of each individual
option takes an optimal trajectory to minimize the mean square hedging error under the risk neutral probability measure, (ii)
optimal smooth functions for the put option may be constructed using those for the call option (and vice versa), and (iii)
delta in the replicating portfolio may be computed efficiently. Numerical experiments are included to show the effectiveness
of our proposed methodology. 相似文献