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61.
This note presents the fractional integrated processes which are the main models used to describe long memory phenomena.1 Section 1 briefly defines the concept of fractional integration, shows the fundamental properties and provides a short summary
of the estimation methods. Section 2 consists of a survey of their extensions in order to model long-term cycles. 相似文献
62.
Denis Claude 《Managerial and Decision Economics》2018,39(5):526-534
Previous research revealed that the strategic role of delegation contracts disappears if two quantity‐setting firms outsource input production to a monopolistic supplier. I show that this role is restored if the assumption of a downstream duopoly is relaxed. Thus, delegation contracts allow downstream profit‐maximizing owners to commit their firms to a behavior that differs from their preferences. This behavior varies nonmonotonically with the number of firms in the downstream market. Corresponding deviations from profit maximization are larger if the upstream monopolist makes a price precommitment. But little to no deviation occurs if the number of firms is large. 相似文献
63.
We review different (generic) conditions on stochastic outcome functions to enforce either efficient or nearly efficient partnerships. Their logical relationship is explored. Two kinds of conditions are considered. However, the property for an action profile to be “compatible” plays a crucial role in both kinds. Also, two kinds of enforcement mechanisms are considered: enforcement through utility transfers and enforcement through repetition.Journal of Economic LiteratureClassification Numbers: D2, D7. 相似文献
64.
65.
Claude O. Archer Peter Peer 《International Journal of Intelligent Systems in Accounting, Finance & Management》1992,1(2):93-101
One component of the 1986 Tax Law was to require taxpayers to file information returns on magnetic media if the quantity to be filed was sufficiently large. A waiver from this filing requirement was possible under hardship and other criteria, and could be obtained by filing a form with the Internal Revenue Service (IRS). Initially, the processing of waiver requests was accomplished manually by several relatively high-level analytical personnel. The IRS's Artificial Intelligence Laboratory (AI Lab) created an Expert System to automate the process. An initial prototype was developed in OPS5+, an AI language, and the system was used on all waiver requests for Forms 1099 for Tax Year 1987, demonstrating feasibility and capability. The system was expanded in the following year, and used on waiver requests for all form types. For Tax Year 1989 the system was rewritten in LEVEL5, so that it could be more easily maintained by in-house personnel. However, implementation problems forced a rapid rewrite, using CLIPPER, a dBase III+ compiler language. This version was subsequently used for all waiver requests for Tax Years 1989 and 1990. Presently, one clerical person can handle all of the waivers. This paper deals with the reasons and ramifications of this language-shell-language transition. 相似文献
66.
In the vast scientific literature on maritime transport, one theme appears neglected: the juridico-political framework in port development. We first examine how the jurisdictional control influences the allocation of resources and financial responsibilities. Second, we carefully evaluate conventional theoretical explanations of the process of port development as it generates important consequences on port policy formulation. We suggest that the concept of the port transition needs to be positioned within a new paradigm of the regional economy. Third, by focusing on three case studies namely France, China and Canada, we provide an understanding of institutional structure and how they reflect tendencies in port development. We then investigate regional flows, particularly the role of offshore, inshore and coastal traffic. Fourth, we present policy options for regionalization of ports. Fifth, we explore the regional elements of the port transition and provide an appreciation of the new role of the State in port development policies. The paper concludes on the adoption of new paradigm in port development strategies. 相似文献
67.
68.
Claude R. Martin Ph.D. 《Journal of the Academy of Marketing Science》1973,1(2):148-155
This paper discusses the relevance of the behavioral theory of “double jeopardy,” developed by a sociologist, to the prediction
of aggregate consumer behavior. The author describes the testing of this relationship by the use of national consumer panel
data and more than a quarter-million purchases. He concludes that the more popular a brand becomes, the more loyal to it will
be its buyers. 相似文献
69.
Summary. We provide a condition for ranking of information systems in agency problems. The condition has a straightforward economic
interpretation in terms of the sensitivity of a cumulative distribution with respect to the agent's effort. The criterion
is shown to be equivalent to the mean preserving spread condition on the likelihood ratio distributions.
Received: November 10, 1999; revised version: February 17, 2000 相似文献
70.
Claude Francoeur Réal Labelle Bernard Sinclair-Desgagné 《Journal of Business Ethics》2008,81(1):83-95
This article examines whether and how the participation of women in the firm’s board of directors and senior management enhances
financial performance. We use the Fama and French (1992, 1993) valuation framework to take the level of risk into consideration,
when comparing firm performances, whereas previous studies used either raw stock returns or accounting ratios. Our results
indicate that firms operating in complex environments do generate positive and significant abnormal returns when they have
a high proportion of women officers. Although the participation of women as directors does not seem to make a difference in
this regard, firms with a high proportion of women in both their management and governance systems generate enough value to
keep up with normal stock-market returns. These findings tend to support the policies currently being discussed or implemented
in some countries and organizations to foster the advancement of women in business. 相似文献