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71.
72.
Robert G. Tompkins 《期货市场杂志》2003,23(2):169-215
The introduction of unspanned sources of risk (and frictions) implies that option prices include a risk premium. Prima facie evidence of the existence of risk premia in option prices is contained in the implied volatility smile patterns reported in the literature. This article isolates the risk premium (defined as the simple difference between estimated and observed option prices) on options on U.K. Gilts, German Bunds, and U.S. Treasury bond futures using models that include price jumps and stochastic volatility. This study finds that single and multi‐factor stochastic volatility models with jumps may explain the empirical regularities observed in bond futures. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:169–215, 2003 相似文献
73.
In this article, we examine the impact of 21 different types of scheduled macroeconomic news announcements on S&P 100 stock‐index option volume and implied volatility. We find that there is a 2‐h delay after the announcement before volume increases. However, there is an immediate increase in volatility, which slowly dissipates over several hours. Further analysis shows that most of the high volume and volatility after announcements come from the announcements that are considered bad news. That is, bad news creates high volatility and high volume, whereas good news elicits lower volume and is not associated with higher volatility. These results are not consistent with the predictions of any one model. We also find that the announcements that cause the largest reaction in the equity option market are Consumer Credit, Consumer Spending, Factory Inventories, NAPM, and Non‐Farm Payrolls. Six other announcements elicit a mild response. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:315–345, 2003 相似文献
74.
Unlike the traditional futures contract risk‐based approach to margining, new security futures contracts are margined under a strategy‐based margining system similar to that which applies in the equity options markets. As a result, these new margin requirements are potentially much less sensitive to changes in market conditions. This article performs a simulation to evaluate whether these alternative margining methodologies can be expected to produce comparable outcomes. The analysis suggests that a 1‐day settlement period will likely lead to collection of customer margins that are virtually always greater than that which its traditional risk‐based counterpart would require. A 4‐day settlement period would lead to margin requirements that both significantly under‐ and overmargin relative to a comparable risk‐based system. This study argues that exchanges may approach the preferred probability of customer exhaustion by managing margin settlement intervals. Thus, the new strategy‐based rules, in and of themselves, will not necessarily inhibit new security futures trading activity. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:989–1002, 2003 相似文献
75.
This study attempts to infuse relationship marketing theory into the study of logistics outsourcing relationships. In particular, the study demonstrates that not all of the partnerships between customers and providers of third‐party logistics services are the same in terms of their level of development. The existence of distinct levels of partnership established previously in the logistics literature is partially supported and a relationship between level of partnership development and the customer perceptions of key relationship marketing elements and outcomes is established. While exploratory in nature, these findings suggest there are benefits for the increased costs of developing closer partnerships. 相似文献
76.
Zusammenfassung Koordinierte Strategien für wirtschaftliche Zusammenarbeit zwischen Europa und den Vereinigten Staaten. - In diesem Aufsatz
wird die dynamische Spieltheorie auf die Koordinierung der Politik zwischen den Vereinigten Staaten und der EWG in einem stark
aggregierten Modell angewandt und folgendes gezeigt: (i) Eine Politik, die den Einflu\ von Ma\nahmen anderer L?nder vernachl?ssigt,
führt in den USA zu Fiskalischen Einschr?nkungen und einer Verminderung der staatlichen Interventionen, in Europa dagegen
zu einer Nachfragestimulierung, verbunden mit einer kontinuierlichen Herabsetzung des Diskontsatzes. Die EWG-L?nder sind,
da sie ihre Politik nicht koordinieren, nach einigen Jahren wegen Zahlungsbilanzschwierigkeiten zu einer kontraktiven Nachfragepolitik
gezwungen. (ii) Koordinierte Strategien best?tigen, da\ nicht-synchronisierte Politiken die Weltwirtschaft stabilisieren k?nnen.
(in) Kooperation verbessert die wirtschaftlichen Leistungen, ausgedrückt in den Wachstumsraten und den Zahlungsbilanzen. Allerdings
erbringt die ausdrückliche Zusammenarbeit kaum noch zus?tzliche Vorteile zu denen, die bereits im Rahmen der vollen Koordinierung
erreicht werden k?nnen.
Resumen Estrategias coordinadas de cooperación económica entre Europa y los EEUU.- La aplicación de un modelo dinámico de teoría de juegos a la coordinatión de política económica entre los EEUU y la CEE, como parte de un modelo altamente agregado de la economía mundial, permite concluír en este trabajo que (i) políticas que ignoran la influencia de medidas tomadas en otros países dan lugar a una contractión fiscal y a una menor interventión del Gobierno en los EEUU, pero a una estimulación de la demanda combinada con reducciones continuas de la tasa de descuento en Europa; al seguir políticas descoordinadas los países de la CEE están obligados a contraer la demanda agregada al cabo de unos a?os, debido a los problemas de balance de pagos, (ii) estrategias coordinadas confirman que políticas no sincronizadas pueden estabilizar la economía mundial; (iii) la cooperación favorece a la economía en términos de tasas de crecimiento y balance de pagos. Sin embargo, los beneficios adicionales de una cooperatión explícita resultan marginales en comparación con los beneficios ya alcanzados por la solución con coordinación total.
Résumé Stratégies coordonnées pour la coopération entre l’Europe et les E.U. - En appliquant la théorie dynamique de jeu à la coordination de politique entre les E.U. et la CEE dans un modèle fortement agrégé de l’économie mondiale, cet article arrive aux conclusions suivants: (i) La politique qui ignore l’influence des actions suivies dans d’autres économies mène à la réduction fiscale et à moins interventions gouvernementales dans les E.U., mais à une stimulation de la demande avec des réductions continuelles du taux d’escompte en Europe. En cas d’une politique pas coordonnée les pays CEE sont forcés à prendre des mesures pour freiner la demande agrégée après quelques années à cause des problèmes de la balance des paiements. (ii) La stratégie coordonnée confirme que des politiques pas synchronisées pourraient stabiliser l’économie mondiale. (iii) La coopération peut élever le taux de croissance et améliorer la balance des paiements. Cependant, les gains additionnels d’une coopération explicite sont petits en comparaison avec les bénéfices déjà gagnés à l’aide d’une solution complètement coordonne’e.相似文献
77.
Kim R. Robertson 《心理学和销售学》1987,4(1):3-15
The strategic marketing decision regarding the selection of a brand name has long been an area neglected by academic researchers. This study attempts to apply psychological theory to this important strategic decision area. Specifically, the applicability of a dual-coding theory of memory to brand name recall/recognition is tested in an experimental setting. Results indicate, on average, a significant one hour and two day recall/recognition advantage of high imagery over low imagery brand names across a variety of product categories. 相似文献
78.
The purpose of this paper is to examine changes in stock return variances following option introduction. The sample consists of National Market System stocks and employs both transaction returns and returns based on bid and ask quotes. Variances are decomposed into portions attributable to bid-ask spreads, return autocorrelations, and intrinsic variances. Spreads play a negligible role in explaining variance changes. A generally positive component to short-term autocorrelations falls following option introduction, increasing variances over short holding periods. Intrinsic variances fall prior to the October 1987 crash, but do not change after the crash with option introduction. 相似文献
79.
Responsibility, Taint, and Ethical Distance in Business Ethics 总被引:1,自引:1,他引:0
G. Mellema 《Journal of Business Ethics》2003,47(2):125-132
Much light can be shed on events which characterize or underlie scandals at firms such as Enron, Arthur Andersen, Worldcom, ImClone, and Tyco by appealing to the notion of ethical distance. Various inquiries have highlighted the difficulties in finding or identifying particular individuals to blame for particular events, and in the context of situations as complex as these it can sometimes be helpful to investigate the comparative ethical distance of various participants in these events. In this essay I offer a characterization of ethical distance in terms of moral responsibility, and in doing so I describe and illustrate the rough inverse correlation between moral distance and degrees of moral responsibility. I urge that the concept of ethical distance is capable of shedding light upon situations in which several people are involved in bringing about a state of affairs. I then argue that moral responsibility cannot do justice to all situations involving ethical distance. When the distance between a person and a state of affairs grows sufficiently large, a different type of treatment is called for, and I introduce the notion of moral taint to describe the moral status of agents in these situations. 相似文献
80.
Sameer R. Rege 《Review of urban and regional development studies : RURDS : journal of the Applied Regional Conference》2002,14(2):153-188
Indian industry is under pricing pressure after the government cut tariffs in a phased manner as per the WTO agreements. In order to be competitive, the consensus opinion in government, academics and industry is the implementation of a VAT in India. The paper evaluates the welfare implications of a VAT in the static and a sequentially dynamic context after accounting for the political and administrative constraints facing the Indian government in implementing a VAT. Replacing the old indirect tax structure with a VAT is welfare worsening. The increase in final consumer prices on account of reduced tax base leads to higher price of essentials, causing welfare loss. Zero rating v/s exemption plays an important role on welfare, with lower welfare loss if essential commodities are exempt from VAT. Agriculture sector unambiguously plays a crucial role in welfare. 相似文献