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71.
We study the problem of forecasting volatility for the multifractal random walk model. In order to avoid the ill‐posed problem of estimating the correlation length T of the model, we introduce a limiting object defined in a quotient space; formally, this object is an infinite range log volatility. For this object and the nonlimiting object, we obtain precise prediction formulas and we apply them to the problem of forecasting volatility and pricing options with the MRW model in the absence of a reliable estimate of σ and T. 相似文献
72.
abstract Prior studies of the comparative performance of greenfields and acquisitions have advanced competing arguments, with some arguing that greenfields should outperform acquisitions because acquisitions are costlier to integrate, and others that acquisitions should outperform greenfields because greenfields suffer from a liability of newness. Moreover, while the costs of integration and the liability of newness are at their greatest during a subsidiary's first years, prior studies have tested their competing arguments on samples containing older subsidiaries. We extend these prior studies by (1) developing an institutional theory‐based framework that simultaneously considers the costs of integration and the liability of newness, (2) recognizing that both types of costs vary with the level of subsidiary integration, and (3) focusing on the stage of their life during which subsidiaries predominantly incur these costs. To measure subsidiary performance, we ask managers of Dutch multinationals how their ex ante performance expectations compare to the subsidiary's ex post performance during its first two years. Analysing a sample of 191 foreign subsidiaries and controlling for entry mode self‐selection and other factors, we find that acquisitions outperform greenfields at low and intermediate levels of subsidiary integration, but that greenfields outperform acquisitions at higher integration levels. 相似文献
73.
74.
Beladi and Chao (2006) and Bárcena-Ruiz and Garzón (2006) considered the role of environmental policy on the decision whether to privatize a public firm in different market structures. This paper re-examines whether privatization improves (or deteriorates) the environment in a mixed duopolistic framework with differentiated product and pollution abatement. It is shown that, due to privatization, less attention is paid to pollution abatement by all the firms coupled with less environment taxes levied by the government in a differentiated duopoly, and the environment is more (less) damaged when the product is less (more) substitutable. When the product is highly substitutable, industry profits increase because this softens the intensity of the product market, but social welfare deteriorates accompanied with the path of privatization because the loss of consumer surplus and tax revenue exceeds the increases in profits, even if the environment is less damaged. 相似文献
75.
Crises in business markets: implications for interfirm linkages 总被引:1,自引:0,他引:1
Rajdeep Grewal Jean L. Johnson Suprateek Sarker 《Journal of the Academy of Marketing Science》2007,35(3):398-416
In the global economy, firms link with customers and suppliers through a complex nexus of strategically critical interfirm
relationships. Due to the diversity of environments and networks involved, these linkages are increasingly vulnerable to catastrophic
disruptions, also referred to as “crises.” The authors offer an advanced conceptualization of crises and explicate the interplay
of crises and interfirm relationships. On the basis of literature and qualitative data from 27 interviews with executives
in 13 firms, the authors develop a process model of crisis that consists of five phases: (1) awareness and acknowledgment,
(2) sensemaking, (3) response design, (4) response implementation, and (5) reconciliation in the aftermath. In discussing
the model, the authors emphasize the influence of crisis on interfirm relationships and conversely highlight the role of the
interfirm relationships in crisis management.
The authors contributed equally and are listed alphabetically. 相似文献
76.
Narjess Boubakri Jean‐Claude Cosset Omrane Guedhami Mohammed Omran 《The Journal of Financial Research》2007,30(1):129-146
We examine the determinants of foreign investors' participation in the privatization process of developing countries. First, we estimate the probability that foreign investors target privatized firms in a given country. We show that a favorable legal environment where investor protection is higher enhances foreign investors' participation. Foreigners also prefer large, strategic firms from high‐growth economies and socially stable countries with low political risk. Second, we restrict our analysis to privatized firms that foreign investors actually choose and show that the stakes foreigners hold are larger if the firms are privatized by private sales as opposed to public offerings. 相似文献
77.
Benefits and Costs of Auditor's Assurance: Evidence from the Review of Quarterly Financial Statements 下载免费PDF全文
Even though there is a worldwide consensus as to the necessity of an audit of annual financial statements for public companies, there is divergence of views as to the review of interim financial statements. While some jurisdictions make it mandatory (e.g., Australia, France, United States), others allow the review without requiring it (e.g., Canada, United Kingdom). Using a sample of companies listed in Canada, we examine the costs associated with these reviews and the benefits they generate in terms of improvement in the quality of interim financial statements for the years 2004 and 2005. Controlling for the decision to purchase the reviews, we find that audit fees are 18 percent higher for firms with interim reviews and, contrary to many regulators' assumption, we find no evidence that this cost increase is proportionally higher for smaller firms. Regarding the benefits of interim reviews, we find no significant association between either accruals‐ or nonaccruals‐based measures of earnings management and the fact that the interim statements are reviewed by the auditor, neither in the interim reports nor in those of the fourth quarter. The results suggest that auditors' involvement with interim reports may not be as effective as previously thought at controlling the quality of interim financial statements. 相似文献
78.
In this paper, we extend the concept of stability to vertical collusive agreements involving downstream and upstream firms, using a setup of successive Cournot oligopolies. We show that a stable vertical agreement, the unanimous vertical agreement involving all downstream and upstream firms, always exists. Thus, stable vertical collusive agreements exist even for market structures in which horizontal cartels would be unstable. We also show that there are economies for which the unanimous agreement is not the only stable one. Furthermore, the Stigler statement according to which the only ones who benefit from a collusive agreement are the outsiders need not be valid in vertical agreements. 相似文献
79.
We examine an export game where two (home and foreign) firms produce vertically differentiated products. The foreign firm is more R&D efficient and is based in a larger and richer market. The unique (risk‐dominant) Nash equilibrium exhibits intra‐industry trade, and the foreign producer manufactures a higher‐quality product. When transport costs are low, unilateral dumping by the foreign firm arises; otherwise, reciprocal dumping occurs. For some parameters, a domestic antidumping policy leads to a quality reversal in the international market whereby the home firm becomes the quality leader. This policy is desirable for the implementing country, though world welfare decreases. 相似文献
80.