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961.
Book review     
D. Ruppert 《Metrika》1990,37(1):70-384
  相似文献   
962.
Zusammenfassung Wachstumsmuster der gr?\ten Firmen der Welt zwischen 1962 und 1982. - Mit Hilfen der Gibrat- und Galton-Modelle wird gezeigt, da\ in den beiden Perioden 1962–1972 und 1972–1982 das Wachstum der gr?\ten Unternehmen langsamer war als das kleinerer Unternehmen. Die wirtschaftliche Konzentration innerhalb dieser Gruppe von Unternehmen mit Weltgeltung nahm in jeder Periode vermutlich ab. Die kleineren Firmen unter ihnen, die zwischen 1962 und 1972 verh?ltnism?\ig erfolgreich waren, wiederholten diesen Erfolg zwischen 1972 und 1982: “Erfolg erzeugt Erfolg”. Die Nationalit?t der Firmen scheint auf diese Ergebnisse für die Periode 1962–1972 ohne Einflu\ gewesen zu sein. Zwischen 1972 und 1982 dagegen gab es in Deutschland und Japan im Gegensatz zu den USA, Gro\britannien und dem Rest der Welt keine Tendenz der kleineren Firmen, schneller zu wachsen.
Résumé Structures de croissance des entreprises mondiales les plus grandes, 1962–1982.- En utilisant les modèles de Gibrat et Galton, les auteurs démontrent que la croissance proportioneile des entreprises les plus grandes était plus lente que celle des entreprises plus petites dans les deux périodes 1962–1972 et 1972–1980. La concentration dans ce groupe des grandes entreprises a probablement décr? dans chaque période. Des petites entreprises qui avaient relativement beaucoup de succès en 1962–1972 répétaient la bonne performance en 1972–1982: “succès produit de succès”. La nationalité de l’entreprise ne semble pas avoir influencé ces résultats en 1962–1972. Mais pour la période 1972–1982, l’Allemagne et le Japon différaient des Etats Unis, du R.U. et du reste du monde en manière que les entreprises les plus petites n’accroissent pas plus vite.

Resumen Pautas de crecimiento de las empresas más importantes, 1962–1982. — Utilizando los modelos de Gibrat y de Galton se demuestra que las empresas más grandes han crecido más lentamente que las empresas peque?as en los períodos 1962–1972 y 1972–1982. La concentración de empresas importantes probablemente disminuyó en cada período. Las empresas peque?as con éxito relativo en 1962–1972 pudieron repetir su éxito en 1972–1982: el éxito genera éxito. La nacionalidad de las empresas parece no haber tenido efecto sobre los resultados para 1962–1972. Pero en 1972–1982, Alemania y el Japón se diferenciaron de los EEUU, el Reino Unido y el resto del mundo al carecer de una tendencia favorable para la peque?a empresa.
  相似文献   
963.
964.
This paper analyzes the effects of scientific information dissemination on consumer and producer behavior. The first section draws heavily from evidence on the ready-to-eat cereal market during a period in which information developed about the health benefits of fiber cereal consumption. Although producers were initially prohibited from advertising these benefits, the regulatory ban against advertising was lifted during the period we study. Our results indicate that advertising was an important source of information leading to increased fiber cereal consumption and product innovation. The second part of our paper discusses the potential for deception if science-based claims are allowed. In the final section we consider a number of regulatory proposals that have been raised in the context of health claims for food products. We evaluate these proposals against the three goals of encouraging the dissemination of truthful information and discouraging the dissemination of deceptive or misleading information and their ability to keep pace with the changing science.  相似文献   
965.
Retail Leasing: The Determinants of Shopping Center Rents   总被引:4,自引:0,他引:4  
The determinants of lease rentals are of fundamental importance to real estate researchers and practitioners. Retail leases are unique in that they typically have two rental components: a base rent and an "overage" rent equal to a percentage of the tenant's gross sales above some threshold level. In this paper, we develop and test a simple cash flow model of retail lease valuation that predicts that base rents are lower with higher percentage rent rates and are higher with greater threshold levels of sales. Using a sample of shopping center leases, regression analysis indicates that these tradeoffs are observed in the market.  相似文献   
966.
The paper explores theoretical approaches to estimating a region’s competitiveness and its underlying factors. The competitive power indicators of the economic complex of Mogilev oblast, Belarus, are analyzed and its regional competitiveness is estimated on the basis of statistical data.  相似文献   
967.
Conclusion This paper attempts to establish the relationship between the level of R&D activities of a country and its trade performance in high-technology products. Empirical evidence based on the limited data used in the paper shows that this relationship appears to be quite significant. An analysis of the implications of this relationship reveals that the low level of R&D in Canada is due to, among other factors, the prevalence of foreign ownership of Canadian manufacturing industries, and the resource-based characteristic of the Canadian economy. Given the nature of foreign-owned firms, the paper suggests that countries should not rely on them as a crucial instrument in the creation of an indigenous capacity to produce high-technology products which are competitive at the world level. Instead, domestic policies aimed at the development and nurturing of the countries' own scientific and technological skills are required. The views expressed in this paper are those of the author. They should not be construed as the official views of the Ministry of State for Science and Technology of the Government of Canada. Research assistance provided by Tom Wudwud and Penny Robinson is well appreciated. The author, however, is responsible for any omissions or errors that remain.  相似文献   
968.
969.
This study is an empirical test of the Easley, O'Hara, and Srinivas (1998) multimarket sequential trade model of stock and option markets. We employ two approaches to determine the information content of signed stock and option trades executed around quarterly earnings announcements. The first approach expands the vector autoregression (VAR) technique of Hasbrouck (1991a) to include signed option trade volumes and inter‐trade durations. Estimates from the VAR models provide insight into whether both equity and option trades are viewed as informative by the equity specialist. The second approach focuses on the information content of the earnings releases to determine whether signed equity and option trades executed prior to the announcements are informed. Results indicate that although informed traders prefer to transact in both markets around earnings announcements, option market transactions contain no incremental information.  相似文献   
970.
Abstract

We consider two models in which the logarithm of the price of an asset is a shifted compound Poisson process. Explicit results are obtained for prices and optimal exercise strategies of certain perpetual American options on the asset, in particular for the perpetual put option. In the first model in which the jumps of the asset price are upwards, the results are obtained by the martingale approach and the smooth junction condition. In the second model in which the jumps are downwards, we show that the value of the strategy corresponding to a constant option-exercise boundary satisfies a certain renewal equation. Then the optimal exercise strategy is obtained from the continuous junction condition. Furthermore, the same model can be used to price certain reset options. Finally, we show how the classical model of geometric Brownian motion can be obtained as a limit and also how it can be integrated in the two models.  相似文献   
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