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71.
Andrew Clare Richard Priestley & Stephen Thomas 《Journal of Business Finance & Accounting》1997,24(5):645-655
We test the robustness of the APT to two alternative estimation procedures: the Fama and MacBeth (1973) two-step methodology; and the one-step procedure due to Burmeister and McElroy (1988). We find that the APT is indeed sensitive to the chosen estimator and assumptions about the factor structure of stock returns. We believe that our findings have implications for the estimation of asset pricing models in general. 相似文献
72.
Seit einigen Jahren stellt der Europäische Gerichtshof vermehrt Regelungen der
nationalen Steuersysteme in Hinblick darauf in Frage, ob sie mit dem EG-Recht konform
gehen. Im aktuellen Fall Marks & Spencer entscheidet der Gerichtshof, ob Konzerne
Verluste ausländischer Töchter mit inländischen Gewinnen verrechnen dürfen. Welche
Wirkung hätte eine EU-weite Verlustverrechnung auf das deutsche Steueraufkommen?Prof. Dr. Clemens Fuest, 36, ist Direktor des Finanzwissenschaftlichen
Forschungsinstituts an
der Universität zu Köln und Mitglied des Wissenschaftlichen
Beirats beim Bundesministerium der
Finanzen; Thomas Hemmelgarn, 30, Dipl.-Volkswirt,
ist Mitarbeiter an demselben Institut; Fred
Ramb, 39, Dipl.-Volkswirt, ist Mitarbeiter der
Deutschen Bundesbank, Economic Research
Centre, in Frankfurt. Dieser Artikel repräsentiert
die persönliche Auffassung der Autoren und entspricht
nicht notwendigerweise der Position der
Deutschen Bundesbank oder ihrer Mitarbeiter. 相似文献
73.
74.
Previous studies on strategic groups have mainly focused on their static characteristics in order to test the theory of strategic groups and intraindustry performance differences (Porter, 1979; Cool and Schendel, 1988; Fiegenbaum and Thomas, 1990). In contrast, this study takes a longitudinal, dynamic perspective and describes the forces driving strategic group membership and structural evolution. It proposes that a strategic group acts as a reference point for group members in formulating competitive strategy. A partial adjustment model of strategic mobility is then developed which incorporates the idea of a strategic group as a reference group. It models strategic change in an industry both within and across strategic groups. The model is tested in the context of an in-depth industry analysis of the more significant firms in the insurance industry over the 1970-84 time period. The results suggest that strategic groups act as reference points for firm strategies and that predictions of future firm strategies and industry/group structures may also be successfully derived. 相似文献
75.
76.
Sophie Manigart Veroniek Collewaert Mike Wright Sarika Pruthi Andy Lockett Hans Bruining Ulrich Hommel Hans Landstrom 《The International Entrepreneurship and Management Journal》2007,3(1):109-125
We examine the neglected area of internationalisation by VCs. Using a representative sample of 195 VCs, we show that the decision
of a European VC firm to invest internationally is driven by its human resources. Having more VC executives in general and
more VC executives with previous international experience in specific, results in a higher probability of investing internationally.
In contrast, more VC executives with experience in the VC industry or with an engineering background lead to a higher probability
of remaining domestic. 相似文献
77.
Entrepreneurs and the Process of Obtaining Resources 总被引:1,自引:2,他引:1
This paper examines the process of how entrepreneurs assemble resources. In the model, the entrepreneur's challenge is to convince two complementary resource providers to commit their resources to a new venture. Before committing their resources, one of them needs to perform a costly evaluation. The entrepreneur has a problem with getting sufficient attention, because each provider has an incentive to wait and free-ride on the other's evaluation. For some parameters the entrepreneur solicits both partners with equal intensity ("knocking on every door"); for others, the entrepreneur always solicits the same partner ("pestering"). For many but not all parameter ranges, the process of assembling resources takes too much time relative to what is socially efficient. The model thus explores what factors facilitate or hinder the creation of new firms. 相似文献
78.
Thomas Christiaans Thomas Eichner Rüdiger Pethig 《Journal of Economic Dynamics and Control》2007,31(12):3965-3985
Based on economic methodology we model an ecosystem with two species in predator–prey relationship: mice feed on grain and grain feeds on a resource. With optimizing behavior of individual organisms a short-run ecosystem equilibrium is defined and characterized that depends on the farmer's use of fertilizer and pesticide and on the mice population which, in turn, is affected by pesticides. In that way, a microfounded agricultural production function is derived. Linking a sequence of short-run ecosystem equilibria yields the growth function of the mice population which is thus derived rather than assumed. In each period the farmer harvests all grain in excess of some given amount of seed. If she maximizes her present-value profits, optimal farming is characterized by either using no pesticide or a moderate amount of pesticide or by applying a chattering control. Pest eradication is never optimal. On the other hand, if the farmer takes into account steady-state mice populations only, it may be optimal to eradicate mice or to use no or a moderate amount of pesticide depending on prices as well as on the shape of the grain production function which is determined by microparameters of grain reproduction. 相似文献
79.
Group decision-making: Head-count versus intensity of preference 总被引:1,自引:0,他引:1
This paper puts forth a framework for reshaping the group decision-making process. The proposed framework extends from the usual one-issue-at-a-time decision-making to one that involves several related issues simultaneously. Weaknesses of the traditional majority voting mechanism are first identified, and then a different voting method that takes each individual voter's sentiment into account is discussed. Specifically, a decision-maker is asked to express his/her intensity of preference for the issues encountered. Three hierarchical structures—benefits, costs, and risks—are developed to evaluate the alternatives. Due to the nature of pairwise comparisons and synthesis, the proposed method is amenable to consensus building and has higher reliability and consistency. It can be used for candidate selection, e.g. governmental election, when a large population is involved. It is also effective for resource allocation and prioritization when a small group or business is concerned. We believe the proposed approach has potential for resolving deficiencies of the conventional voting mechanism, and can be applied to many real-world problems. Its implementation on the Internet is also discussed. 相似文献
80.
In this paper, we consider the problem of estimating a selected set of contrasts between v treatments using a block design consisting of b blocks of size k. Traditionally, the construction of A-optimal block designs for such situations has been carried out assuming a fixed effects model. In this paper, we show that A-optimal designs constructed under a fixed effects model are robust in the sense that these designs have maximal minimal efficiency when considered among all available designs and under all possible mixed effects models.
AMS 1991 subject classifications: Primary 62K05; Secondary 62K10 相似文献