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排序方式: 共有401条查询结果,搜索用时 15 毫秒
1.
Ming-Shiun Pan 《The Financial Review》2001,36(1):23-38
The study examines the aggregate dividend behavior of U.S. corporations based on the permanent earnings hypothesis. Using annual data of aggregate earnings and dividends from 1871–1993, I find that although managers change dividends proportional to permanent earnings changes, they make revisions with a larger percentage change in dividends than in permanent earnings. The results from the post‐war data show that firms follow a partial adjustment policy with a long‐term dividend payout target in mind and make revisions with a delay. The quarterly data analysis yields results similar to those of the post‐war annual data. 相似文献
2.
Gregory S. Amacher Erkki Koskela Markku Ollikainen 《Bulletin of economic research》2005,57(4):391-405
We use a vertical product differentiation model under partial market coverage to study the social welfare optimum and duopoly equilibrium when convex costs of quality provision are either fixed or variable in terms of production. We show the following new results. First, under fixed costs, the social planner charges a uniform price for the single variant that just covers costs of quality provision. Like the duopoly equilibrium, this socially optimal pricing entails a partially uncovered market, but a smaller share of the market is served compared with the duopoly equilibrium. Second, for the variable cost case, it is socially optimal to provide both high‐ and low‐quality variants, but market shares need not be equal. This differs from the result in fully covered markets. Third, in the duopoly equilibrium, the quality spread is too wide under variable costs relative to the social optimum. Under fixed costs, the duopoly produces two variants, but quality is too low relative to the social optimum, which has only one variant. 相似文献
3.
Oh Sang Kwon 《Environmental and Resource Economics》2006,33(4):463-483
This study extends the great fish war model of Levhari and Mirman [Levhari, D. and Mirman, L. (1980) Bell Journal of Economics 11: 322–344] by incorporating a multiple country context into the model and investigates the existence of a partial coordination
Nash equilibrium. First, findings of this paper suggest that a partial coordination scheme is sustainable only in limited
cases. Any coalition that has more than two member countries cannot be sustained. Second, the existence and the number of
coordinating countries depend critically on the magnitude of the biological and preference parameters. Finally, if the coalition
is assumed to be a dominant player, there always exist one or two welfare-improving sustainable coalitions and the size of
the sustainable coalitions depends on the parameters of the problem. 相似文献
4.
B.F. Schriever 《Statistica Neerlandica》1987,41(2):99-109
For some non–parametric testing problems (one–sided two–sample problem, k –sample trend problem, testing independence against positive dependence) a partial ordering, denoted by ≥, over the alternatives is defined. This partial ordering expresses the strength of the deviation from the null–hypothesis. All familiar rank tests turn out to become more powerful under "increasing" alternatives; that is, all familiar rank statistics preserve the ordering stochastically in samples whenever it is present between underlying distributions. As a tool, the sample equivalence of ≥ is introduced as a partial ordering over pairs of permutations. Functions, defined on pairs of permutations, which preserve this ordering are studied. 相似文献
5.
This article provides a fresh insight into the dynamic nexus between oil prices, the Saudi/US dollar exchange rate, inflation, and output growth rate in Saudi Arabia’ economy, using novel Morlet’ wavelet methods. Specifically, it implements various tools of methodology: the continuous wavelet power spectrum, the cross-wavelet power spectrum, the wavelet coherency, the multiple and the partial wavelet coherence to the annual sample period 1969–2014. Our results unveil that the relationships among the variables evolve through time and frequency. From the time-domain view, we show strong but non-homogenous linkages between the four variables. From the frequency-domain view, we uncover significant wavelet coherences and strong lead-lag relationships. From an economic view, the wavelet analysis shows that Saudi economy is still exposed to several global risk factors, which are mainly related to the oil market volatility, and the pegging of the local currency to the US dollar. Such risk factors strongly and negatively affect the real economic growth, exert more pressure on inflation, and substantially limit the freedom to pursue an independent monetary policy. 相似文献
6.
We consider the infinite-horizon optimal portfolio liquidation problem for a von Neumann–Morgenstern investor in the liquidity
model of Almgren (Appl. Math. Finance 10:1–18, 2003). Using a stochastic control approach, we characterize the value function and the optimal strategy as classical solutions
of nonlinear parabolic partial differential equations. We furthermore analyze the sensitivities of the value function and
the optimal strategy with respect to the various model parameters. In particular, we find that the optimal strategy is aggressive
or passive in-the-money, respectively, if and only if the utility function displays increasing or decreasing risk aversion.
Surprisingly, only few further monotonicity relations exist with respect to the other parameters. We point out in particular
that the speed by which the remaining asset position is sold can be decreasing in the size of the position but increasing
in the liquidity price impact.
相似文献
7.
We construct a sequence of functions that uniformly converge (on compact sets) to the price of an Asian option, which is written on a stock whose dynamics follow a jump diffusion. The convergence is exponentially fast. We show that each element in this sequence is the unique classical solution of a parabolic partial differential equation (not an integro‐differential equation). As a result we obtain a fast numerical approximation scheme whose accuracy versus speed characteristics can be controlled. We analyze the performance of our numerical algorithm on several examples. 相似文献
8.
根据高压开关的维修调查报告,高压开关的高故障率导致很多企业正常生产的过程中由于供电的不连续导致巨大的经济损失,通过对高压开关工作原理和状态检修理论的综合分析研究。 相似文献
9.
黄振明 《黄石理工学院学报》2011,(4):43-46
考虑某类高阶偏微分系统离散谱的估计,利用谱理论、矩阵运算、分部积分、测试函数、Ray—leigh定理和不等式估计等方法,获得了用前n个谱来估计第n+1个谱的上界的不等式,且其估计系数与区域的几何度量无关,其结论是文献[4—5]的进一步推广. 相似文献
10.