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91.
In this paper, we analyze the role of aggregate variables in the transmission from international stock price developments to individual domestic stock prices in a small open stock market. In particular, a theoretical and econometric model is used to determine whether international aggregate product market developments explain observed differences in foreign dependence among individual Belgian stocks. The results suggest that, except for the stocks of some internationally oriented companies, expected international production is not the most important explanatory variable and that an estimation model of aggregate fundamentals explains only part of individual stock price adjustments.  相似文献   
92.
The purpose of this paper is threefold: (1) we emphasize the rule of uncertainty in achieving an efficient allocation of resources to R & D activities; (2) we identify and discuss optional mechanisms that are directed at minimizing the role of uncertainty in determining R & D decisions; and (3) we analyze the role of public intervention in R & D via a formal structure. More specifically, we explain why and under what conditions a risk-averse decision-maker will invest less than a government in research and inventive activities. Sufficient conditions that lead to private underinvestment in these activities are established. Furthermore, if the option of buying information exists, then we identify a set of private governmental contracts that may lead to the acceptance of a research project that a priori is unfeasible.  相似文献   
93.
There is considerable evidence supporting the time-varying distribution of asset returns. There is also ample evidence that scheduled announcement events such as money supply announcements (in the case of foreign exchange), earnings announcements (in the case of stocks), and crop reports (in the case of commodities), as well as random unscheduled events, can affect the level and volatility of asset returns. This study provides an Event Model for European call options which explicitly addresses effects of these two classes of events. This specification requires estimation of more parameters, but it could provide a more accurate basis for pricing options than previous Poisson jump-diffusion models. Parametric analysis shows that the standard models under price the options relative to the Event Model. The Event Model may be particularly useful in pricing short-term deep out-of-the-money options when scheduled events are present in the market.  相似文献   
94.
The paper outlines the ideas and theory behind a recently begun research project. The project consists of an investigation of the complexities, and particularly the problems, inherent in introducing technological innovation into production systems in industry. The practical and theoretical need for work of this kind is examined and the character and focus of the proposed investigation sketched. The concept of “discontinuance” is analysed and seen to apply both to the cessation of innovation production by a supplier and the termination of innovation usage by an adoptor. Rogers and Shoemaker's (1971) division of adoptor discontinuance into “replacement” and “disenchantment” discontinuance is considered and reformulated using the terms “replacement adoption”, “negative changeover effects” and “regressive discontinuance”. Finally, a number of models both of innovation development and innovation adoption are considered, synthesized and revised. An initial framework for the comprehension of innovation development and adoption is sketched and some of the potentially important issues therein are highlighted.  相似文献   
95.
This paper discusses the estimation of a parameter in an autoregressive model with infinite variance. A recursive estimation procedure based on minimizing the prediction errors is provided. It is also shown that the model reference adaptive system estimate for an AR (1) model given in Aase (1983) is a special case.  相似文献   
96.
Getting the most out of advertising and promotion   总被引:1,自引:0,他引:1  
Abraham MM  Lodish LM 《Harvard business review》1990,68(3):50-1, 53, 56 passim
Until recently, believing in the effectiveness of advertising and promotion was largely a matter of faith. Despite all the data collected by marketing departments, none measured what was really important: the incremental sales of a product over and above those that would happen without the advertising and promotion. Thanks to a qualitatively new kind of marketing data, that situation is changing. "Single source" data correlate information on actual consumer purchases (available from universal-product-code scanners used in supermarkets and drug-stores) with information on the corresponding television advertising those consumers receive or on the promotion events they see. This allows managers to measure the incremental impact of advertising and promotion and to improve marketing productivity. To take advantage of the new single-source data, however, managers have to throw out much of the conventional wisdom about advertising and promotion that has grown up over the years. They must learn how to evaluate marketing differently by continually examining the appropriate balance between advertising and promotion. They must also train their sales force to do a different and extremely important job: to demonstrate to retailers the consumer pull of the company's advertising and promotion programs, as well as the effect of these programs on retailer profitability.  相似文献   
97.
98.
Although collusive tax evasion by buyers and sellers of commodities and also by employers and employees is widespread all over the world, it has rarely been analyzed in the tax evasion literature. To fill this gap and to compare collusive tax evasion with independent tax evasion, this paper develops a simple noncooperative game-theoretic model and confirms the model’s predictions in a laboratory experiment. Because collusive tax evasion involves social interaction, this paper focuses on the effect of social norms and theoretically and empirically demonstrates that the tax compliance norm has a stronger negative effect on the magnitude of collusive tax evasion than on independent tax evasion. The reason for this result is that in a collusive tax evasion game with multiple equilibria social norms affect the range of equilibria and act as an equilibrium selection device, whereas social norms need to be strongly internalized to change the behavior of taxpayers who evade taxes unobservedly.  相似文献   
99.
ABSTRACT

This study seeks to deepen our understanding on how country-level governance structures influence prevalence of foreign ownership of firms in Africa. This study reinforces the new institutional economics perspective by empirically highlighting that governance structures influence the prevalence of foreign ownership of companies in an economy. Using archival data from 39 African economies, we found that there is a significant positive association between regulatory quality and foreign ownership prevalence. Also, foreign ownership is prevalent in African countries that are politically stable and embrace rule of law. However, we found that countries with high voice and accountability structures are associated with low foreign ownership prevalence.  相似文献   
100.
HR practices that look beyond focusing mainly on shareholders' interests to include a wider group of stakeholders are likely to result in a more effective HR system. This work examines Italian HR managers' perspectives of stakeholders and their perceived salience, based on data collected from 30 HR managers from the highest capitalization companies in the Milan Stock Exchange. The Mitchell, Agle and Wood model of stakeholder salience is applied to classify the stakeholders of the HR system into four clusters: definitive, dependent, discretionary and non-stakeholders. The results are discussed with reference to the body of knowledge on strategic HRM, putting forward specific managerial implications and proposing avenues for further research.  相似文献   
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