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排序方式: 共有65条查询结果,搜索用时 31 毫秒
1.
In this paper a multi-factor generalization of Ho–Lee model is proposed. In sharp contrast to the classical Ho–Lee, this generalization
allows for those movements other than parallel shifts, while it still is described by a recombining tree, and is a process
with stationary independent increments to be compatible with principal component analysis. Based on the model, generalizations
of duration-based hedging are proposed. A continuous-time limit of the model is also discussed.
This research was supported by Open Research Center Project for Private Universities: matching fund subsidy from MEXT, 2004–2008
and also by Grants-in-Aids for Scientific Research (No. 18540146) from the Japan Society for Promotion of Sciences. 相似文献
2.
Reiko Aoki 《Economic Theory》2003,21(2-3):653-672
We show how credible revelation and ability to commit to quality choice effect equilibrium qualities and welfare when product
market is either Bertrand or Cournot competition. We show that results depend on the type of competition but not generally
on the cost of quality function. We show that with Bertrand competition, the equilibrium qualities are lower with credible
commitment. Competition is moderated and producer surplus is higher and consumer surplus lower. With Cournot competition,
higher quality will be better but lower quality will be worse with credible commitment. Consumer surplus is always greater
with credible commitment and if cost does not increase too quickly with quality, producer surplus will also increase. Thus
credible commitment is a collusive device with Bertrand competition but it can improve social welfare with Cournot competition.
Received: February 8, 2000; revised version: February 14, 2002
RID="*"
ID="*" The idea of this paper originated in the weekly workshops of Mordecai Kurz at Stanford. I am forever in debted to Mordecai
and fellow students – Luis Cabral, Peter DeMarzo, John Hillas, Michihiro Kandori, Steve Langois, Patrick McAllister, Steve
Sharpe, Peter Streufert, Steve Turnbull and Gyu-Ho Wang – for their criticism and encouragement. I also benefited from comments
from Yi-Heng Chen, Jin-Li Hu, Kala Krishna, Jinji Naoto, Thomas J. Prusa, and Shyh-Fang Ueng at various later stages of this
work. Last but not least, I am grateful for the detailed comments of the referee. 相似文献
3.
Yasuharu Aoki 《International Review of Finance》2014,14(4):613-645
Focusing on the legal protection of minority shareholders in Japan, which suggests that manager‐owned firms are better governed than corporation‐owned firms, this study presents a new test of two dividend models: the substitute model and the outcome model. In support of the latter, I find that manager‐owned firms pay higher dividends than corporation‐owned firms. The paper also examines the association between ownership by the largest shareholder and dividend payments. I find an inverted U‐shaped relationship for manager‐owned firms and a U‐shaped relationship for corporation‐owned firms between them. These results can be explained by the benefits and drawbacks of concentrated ownership. 相似文献
4.
5.
We estimate labor losses caused by spam mails and input these estimated values into a production function, while also estimating
damage to the Gross Domestic Product (GDP) in Japan. As a result, we have found that spam mails decreased the Japanese GDP
by about 500 billion yen in 2004. This marginal negative effect of spam mail to the GDP increased with the progress of broadband
in 2000. Moreover, from the result of a social simulation conducted by the authors, the amount of damage is projected to reach
1% of the Japanese GDP by 2010, unless adequate countermeasures are taken against spam mails. This projection provides a statistical
fundamental to several theoretical analyses of spam mails. 相似文献
6.
7.
Takaaki Aoki 《Applied economics》2013,45(18):2361-2368
This article describes one simple Cournot oligopoly model with linear inverse demand and international linkage, and tries to analyse how the degree of competitiveness, the diversity in comparative advantage, consumer preference and market volume are closely interrelated with each other in the course of free trade areas (FTA) liberalization. The influence of income/substitution effects to firm's profit maximization is also examined. My analysis shows some basic results and implications regarding the tariff-setting strategies and the incentive for endogenous internal liberalization, as well as the role of FTA formation on a stream to world-wide liberalization. 相似文献
8.
9.
10.
Masanao Aoki 《Economics Letters》1978,1(2):157-162
Short-run stability of a small open economy under flexible exchange rate regimes is shown to involve joint conditions on the rates of the growth of the public debt and of the current account surplus. 相似文献