Trente ans d'évolution du risque-pays


Revue Française de Gestion

mars-avril-mai 2001, n°133, pp.61-66

Départements : Finance

Understanding social closure in its cultural context: accounting practitioners in France (1920 - 1939)


Accounting Organizations and Society

mai 2001

Départements : Comptabilité et Contrôle de Gestion

Understanding Values and Expectations of Foreign Employees Creates a Better Company


European Management Journal

février 2001, vol. 19, n°1, pp.27-31

Départements : Management et Ressources Humaines, GREGHEC (CNRS)

Cites that nationality and cultural group are good determinants of common managerial problems related to human resource management, especially in situations of cross-border mergers, acquisitions, joint-ventures and alliances. Debate on how companies and employees should interact and negotiate mutual expectations; Underlying logics of decision-making; Cultural applications of decision logics.

Using Implied Volatility on Options to Measure the Relation Between Asset Retums and Variability

W. Davidson, J. Kim, E. ÖRS, A. Szakmary

Journal of Banking and Finance

juillet 2001, vol. 25, n°7, pp.1245-1269

Départements : Finance, GREGHEC (CNRS)

Prior research has documented that volatility in financial asset markets is most directly related to trading rather than calendar days, and that there is an inverse asymmetric relation between volatility and returns in both stocks and long-term bonds. We examine these relations in 37 futures options markets representing a wide variety of asset types. Using futures prices and implied volatilities from this extensive array of markets, we confirm that in all of them, save one, market volatility is more directly related to trading days. However, the nature of the association between implied volatility and underlying asset returns varies greatly across asset categories and across exchanges. Thus, we show that findings from equity markets apparently are not generalizable to other asset classes.

What's new? A multidimensional approach to product newness

J. B. E. M. Steenkamp, J. C. M. Van Trijp, A. MICHAUT-DENIZEAU

European Advances in Consumer Research

2001, vol. 4

Départements : Marketing

How do consumers assess the newness of a new product? We address this question to determine the relevant variables for perceived newness evaluation, get insight into the origin and determinants of newness within a product, and how these differentially influence overall newness. We find empirical evidence for a two-dimensional structure of overall newness. First, a perceptual dimension referring to the newness consumers can immediately perceive through product exposure, second, an epistemic dimension which requires accessibility to higher levels of knowledge structure to be perceived. Results show that attributes are top-of-mind in perceived newness elements, however benefits appear fast and naturally when products offer epistemic newness. Findings also emphasize that consumers need true new benefits to evaluate products as new. This research provides managers with an analytical tool to assess the intensity and nature of products' newness and to develop their marketing strategy accordingly

When Lorenz met Lyapunov

M. Dall'Aglio, M. SCARSINI

Statistics & Probability Letters

2001, vol. 54, n°1, pp.101-105

Départements : Economie et Sciences de la décision

We provide a simple characterization of the zonoid, lift zonoid, Lorenz zonoid of a random vector, as defined by Koshevoy and Mosler (J. Amer. Statist. Assoc. 91 (1996) 873; Bernoulli 4 (1998) 377). This characterization allows a direct use of Lyapunov's theorem on the range of nonatomic vector measures and therefore simplifies the proof of some results