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71.
NO‐ARBITRAGE PRICING FOR DIVIDEND‐PAYING SECURITIES IN DISCRETE‐TIME MARKETS WITH TRANSACTION COSTS 下载免费PDF全文
We prove a version of First Fundamental Theorem of Asset Pricing under transaction costs for discrete‐time markets with dividend‐paying securities. Specifically, we show that the no‐arbitrage condition under the efficient friction assumption is equivalent to the existence of a risk‐neutral measure. We derive dual representations for the superhedging ask and subhedging bid price processes of a contingent claim contract. Our results are illustrated with a vanilla credit default swap contract. 相似文献
72.
Tomasz Lenartowicz Robert Konopaske 《International Journal of Human Resource Management》2013,24(12):1697-1719
Cultural intelligence and intercultural competence are concepts that have been identified as antecedents for success in global management, and both depend on the acquisition of cultural knowledge. However, although a lack of cultural knowledge is cited in the international management literature as a frequent source of failure in expatriate assignments, there is scant research about how cultural knowledge is created and diffused within organizations. We cite evidence that cross-cultural training programs, which are widely utilized for cross-cultural knowledge transfer, tend to be ineffective in transferring cultural knowledge, and we examine in detail how cultural knowledge is acquired in MNCs and reveal the importance of its tacit component. Then, drawing upon five relevant learning models, we propose a framework for the effective transfer of cultural knowledge. Based on this theoretical underpinning, we offer four sets of effective cross-cultural training methods, as a function of the resources available, that the firm can apply to achieve more effective cross-cultural training for global managers. 相似文献
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The home market effect is considered as a distinguishing feature of models of trade with increasing returns to scale in production and imperfect competition. However, some empirical studies found the existence of home market effect even in constant returns to scale industries. This paper builds a model of intra‐industry trade based upon quality assurance and shows the existence of the home market effect without increasing returns in the production technology. This throws into question the rationale of empirical studies attempting to validate the increasing returns model of trade based upon testing the existence of the home market effect. 相似文献
77.
Tomasz Strzalecki 《Journal of Economic Theory》2011,146(3):1173-1194
Important implications of the expected utility hypothesis and risk aversion are that if agents have the same probability belief, then consumption plans in every efficient allocation of resources under uncertainty are comonotone with the aggregate endowment, and if their beliefs are concordant, then the consumption plans are measurable with respect to the aggregate endowment. We study these two properties of efficient allocations for models of preferences that exhibit ambiguity aversion using the concept of conditional beliefs, which we introduce in this paper. We provide characterizations of such conditional beliefs for the standard models of preferences used in applications. 相似文献
78.
Tomasz Piotr Wisniewski Geoffrey Lightfoot Simon Lilley 《Journal of Economics and Finance》2012,36(1):106-122
Stock markets and politics are enduring staples of dinner party conversations but surprisingly little is known about the interaction
between the two. Here we present evidence for a robust relationship between a key financial measure—the aggregate Price–Earnings
ratio—and surveyed approval of the incumbent president. We argue, following the finance literature, that the price–earnings
ratio is a composite measure of investors’ hopes and fears. The partially prospective nature of this ratio enables us to shed
new light upon the controversy surrounding how the electorate attends to economic circumstances in judging its presidents. 相似文献
79.
The aim of the paper is to study the economic aspects of the Bródy conjecture: an increase in the size of a (random) input matrix causes a decline in the ratio of its subdominant and dominant eigenvalues and implies faster convergence to equilibrium [Bródy, A. (1997) The Second Eigenvalue of the Leontief Matrix. Economic Systems Research, 9, 253–258]. Simulation results provide evidence that this ratio depends inversely on the level of data aggregation and can therefore not be a good indicator of the speed of convergence of an economy to its equilibrium path. We show that this is consistent with findings based on actual input–output tables of EU member states. These results imply that theorems about the speed of convergence of random matrices are not useful in describing the cyclical dynamics of real economies. 相似文献
80.
American options are considered in the binary tree model under small proportional transaction costs. Dynamic programming type algorithms, which extend the Snell envelope construction, are developed for computing the ask and bid prices (also known as the upper and lower hedging prices) of such options together with the corresponding optimal hedging strategies for the writer and for the seller of the option. Representations of the ask and bid prices of American options in terms risk-neutral expectations of stopped option payoffs are also established in this setting. 相似文献