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11.
Georges Dionne 《The GENEVA Papers on Risk and Insurance - Theory》1990,15(2):193-202
Jacques Drèze has participated significantly in many fields of economic analysis. The book we have reviewed is limited to his main contributions to the economics of uncertainty and information. It is rich in ideas, models, and results for graduate students and researchers who are interested in this now basic dimension of economic analysis. We hope that its publication will permit the public at large to better appreciate the importance of its author's contributions.Economics Department and CRT Université de Montréal C.P. 6128. Succursale A Montréal (Québec) Canada H3C 3J7. Kenneth Arrow, Danielle Blanchard, Camille Bronsard, Leonard Dudley, Robert Gagné, Edi Karni and Françoise Shoumaker provided very useful comments on a first version of this review. Thanks are also due to Carole Laflamme for editorial assistance. 相似文献
12.
Georges Casamatta Helmuth Cremer Pierre Pestieau 《International Tax and Public Finance》2001,8(4):417-431
We assume that individual voters differ not only according to age but also productivity. In the steady state, workers with wages in the intermediate range join the retired persons to form a majority and vote for a positive level of social security. When a shock decreases population growth, entrenched interests can constrain majority voting decisions and prevent reforms in the name of entitlements. We show that from a Rawlsian viewpoint it may be desirable to rely on these entitlements to protect the low wage earners of the transition generations. However, when the possibility of fixing a basic pension is introduced, it constitutes a better instrument than entitlements. 相似文献
13.
Georges Dionne Marie-Gloriose Ingabire 《The GENEVA Papers on Risk and Insurance - Theory》2001,26(2):139-154
C. Gollier (The Economics of Risk and Time. Cambridge: MIT Press, 2001) has developed a standard technique based on the diffidence theorem. This theorem provides a very simple instrument to solve relatively sophisticated problems when preferences are state-independent. The object of this article is to show that the theorem is also very useful to derive significant results with state-dependent preferences. Using the reference set notion and an extension of the diffidence theorem, we establish formally necessary and sufficient conditions on the reference set, in order to obtain prudence and decreasing absolute risk aversion. Examples of DARA utility functions compatible with non-linear reference sets are presented in the Appendix. 相似文献
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15.
Intraday Value at Risk (IVaR) using tick-by-tick data with application to the Toronto Stock Exchange 总被引:1,自引:0,他引:1
This paper investigates the use of tick-by-tick data for intraday market risk measurement. We propose a method to compute an Intraday Value at Risk based on irregularly spaced high-frequency data and an intraday Monte Carlo simulation. A log-ACD–ARMA–EGARCH model is used to specify the joint density of the marked point process of durations and high-frequency returns. We apply our methodology to transaction data for three stocks actively traded on the Toronto Stock Exchange. Compared to traditional techniques applied to intraday data, our methodology has two main advantages. First, our risk measure has a higher informational content as it takes into account all observations. On the total risk measure, our method allows for distinguishing the effect of random trade durations from the effect of random returns, and for analyzing the interaction between these factors. Thus, we find that the information contained in the time between transactions is relevant to risk analysis, which is consistent with predictions from asymmetric-information models in the market microstructure literature. Second, once the model has been estimated, the IVaR can be computed by any trader for any time horizon based on the same information and with no need of sampling the data and estimating the model again when the horizon changes. Backtesting results show that our approach constitutes reliable means of measuring intraday risk for traders who are very active in the market. 相似文献
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17.
Georges Dionne Mélissa La Haye Anne‐Sophie Bergerès 《The Canadian journal of economics》2015,48(3):819-852
We test the influence of information asymmetry on the premium paid for an acquisition. We analyze mergers and acquisitions as English auctions. The theory of dynamic auctions with private and common value predicts that more informed bidders may pay a lower price. We test that prediction with a sample of 1,026 acquisitions in the United States between 1990 and 2007. We assume that blockholders of the target's shares are better informed than other bidders because they possess privileged information on the target. Our empirical results show that blockholders pay a much lower premium than do other buyers 相似文献
18.
Relational selling strategy and key account managers' relational behaviors: An exploratory study 总被引:1,自引:0,他引:1
Paolo Guenzi Author Vitae Catherine Pardo Author Vitae Laurent Georges Author Vitae 《Industrial Marketing Management》2007,36(1):121-133
Many companies see key account management as a potentially successful way to implement a relational strategy. Nevertheless, the literature suggests that strategy implementation at the sales force level is difficult to achieve, mainly because salespeople may not understand - nor accept - what they are requested to do. Despite their relevance, behaviors of key account managers have poorly been investigated. This article defines and tests a model of relational selling behaviors from the part of key account managers. Results show that the perception of the adoption of a relational selling strategy is associated with some specific key account managers' behaviors (customer-oriented selling, adaptive selling and team selling), but not with others (organizational citizenship behaviors). These findings suggest that potential discrepancies can exist between a relational selling strategy and its implementation at the key account manager level. Based on these results, theoretical and managerial implications are discussed. 相似文献
19.
Georges Enderle 《Journal of Business Ethics》2001,30(3):261-276
The discussions about the reform of state-owned enterprises are so far dominated by economic and legal considerations while the ethical dimension of this highly complex problem is being barely addressed explicitly, much less developed systematically and integrated into a broader analytical framework for companies in China. This paper is a proposal to introduce this kind of ethical considerations. First, the main features of the reform of state-owned enterprises are briefly summarized and a number of critical issues are identified. Second, the "balanced concept of the firm" is presented and compared with other approaches to corporate ethics in chiefly Western literature (discussions on "corporate social responsibility", the stakeholder approach, and social contract theories). Finally, the relevance of this "balanced concept of the firm" for the reform of state-owned enterprises is briefly discussed. 相似文献
20.
Exit (owners selling their shares) and voice (owners active in corporate activities) are important ingredients in the process by which mass privatization changes managerial behaviour in transition countries. We examine the structure of ownership and the extent of exit and voice in one such country, Mongolia. We document the size of ownership changes since privatization (through mergers, spin-offs, and stock sales) and examine which owners are changing in importance. We scrutinize enterprise governance, examining patterns of violations of companylaw and deviations from reasonable criteria for effective governance. We show that ownership changes and the quality of governance are correlated.
JEL classification: P11, P21, O53, H70, H20. 相似文献
JEL classification: P11, P21, O53, H70, H20. 相似文献