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971.
摘要:西方发达资本主义国家的养老保险经历了长期的制度实践和政策调适,基本形成了较为完善的城乡一体化制度模式和运行机制,尤其是多数工业化国家也同样经历了“先城市、后农村”的养老保险发展历程,这对我国当前城乡社会养老保险制度从二元分割走向统筹整合有着重要的经验启示:政府主导自上而下、城市农村双向推动、制度统分双层结合、时间序列上的分步渐进和空间层次上的梯度递进是社会养老保险城乡统筹应遵循的推进策略。 相似文献
972.
973.
The article presents a methodology for the formation and functioning of industrial networks that favors the development of dynamic capabilities with regard to the creation, integration, transfer and absorption of knowledge. This methodology has been put into practice in a case study: Lignum Facile. The presence of some misalignments between our initial proposal and its implementation helped us reshape and emphasize particular processes and flows associated to the methodology. Beyond the typical localization and agglomeration advantages, the analysis suggests that the success in the formation and functioning of industrial networks is mainly related to their potential to formulate immaterial relationships capable of stimulating learning processes, the dissemination of technological knowledge and innovative activities. Particularly, we found that the inclusion of border agents – intermediaries between the market and industry such as architects, engineers or designers – is fundamental to develop innovations at the intersection of different scientific and technological disciplines. 相似文献
974.
This paper posits that the efficacy of different retrenchment strategies depends upon the firm's core rent creation mechanism. We focus on two distinct mechanisms of rent creation: Ricardian rent creation based on the exploitation of resources and Schumpeterian rent creation based on explorative capabilities. We argue that cost retrenchment may have detrimental effects on firms with a relatively high Schumpeterian rent focus. On the other hand, asset retrenchment may erode the basis for future rent creation for firms with a higher Ricardian rent focus. Our findings based on a sample of large nondiversified Japanese firms highlight the differing degrees of fragility and recoverability of the two rent creation mechanisms in the context of different retrenchment strategies. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
975.
Necessity as the mother of ‘green’ inventions: Institutional pressures and environmental innovations
Drawing on institutional theory and innovation literature, we argue that greater regulatory and normative pressures concerning environmental issues positively influence companies' propensity to engage in environmental innovation. Analysis of environment‐related patents of 326 publicly traded firms from polluting industries in the United States suggests that institutional pressures can trigger such innovation, especially in those firms displaying a greater deficiency gap (i.e., firms polluting relatively more than their industry peers). Moreover, we find that this effect is stronger when asset specificity is high, and that the availability of resources plays different roles depending on the type of pressures (regulatory vs. normative).Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
976.
The Internet and its component, the World Wide Web (WWW or Web), as well as the casino industry grew tremendously in the United States in the past decade. While there are various estimates about the future size of the Internet and the casino market, all agree that the two will continue to grow substantially. However, very few studies have discussed Internet use within the casino industry. This study reviewed 58 Class III Native American casino web sites. Content areas analyzed included introduction to the casino organization, local destination attractions, food and beverage services, accommodations, entertainment and recreation facilities, maps and directions to casinos, links to related commercial and regulatory agency web sites, and user friendliness. Web site features were evaluated based on marketing mix and principles. 相似文献
977.
Camillia Zedan Antonella Ianni Seth Bullock 《International Journal of Intelligent Systems in Accounting, Finance & Management》2013,20(1):39-51
We present an agent‐based model of endogenous merger formation in a market with turnover of market participants. We describe the dynamics of the model and identify the conditions under which market competition is sufficiently disrupted to prompt extended periods during which mergers are desirable. We also demonstrate how merger waves can be triggered by industry shocks and firm overconfidence. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
978.
The present article constitutes part II of a series of two reports in which we study the decomposition of synthetic and real financial time-series into a superposition of weighted Hamiltonian cycles on graphs. Part II further analyses the cycle-decomposition method introduced in part I for the Minority Game (MG), the Majority Game (MAJG) and the Dollar Game ($G), in order to gain insight into the ‘illusion of control’ that certain of these games demonstrate, i.e. the fact that the strategies outperform the agents that deploy them. We also illustrate both numerical and analytical methods for extracting cycles from a given time-series and apply the method to a number of different real-world data sets, in conjunction with an analysis of persistence. 相似文献
979.
Anirban Chakraborti Ioane Muni Toke Marco Patriarca Frédéric Abergel 《Quantitative Finance》2013,13(7):1013-1041
This article is the second part of a review of recent empirical and theoretical developments usually grouped under the heading Econophysics. In the first part, we reviewed the statistical properties of financial time series, the statistics exhibited in order books and discussed some studies of correlations of asset prices and returns. This second part deals with models in Econophysics from the point of view of agent-based modeling. Of the large number of multi-agent-based models, we have identified three representative areas. First, using previous work originally presented in the fields of behavioral finance and market microstructure theory, econophysicists have developed agent-based models of order-driven markets that we discuss extensively here. Second, kinetic theory models designed to explain certain empirical facts concerning wealth distribution are reviewed. Third, we briefly summarize game theory models by reviewing the now classic minority game and related problems. 相似文献
980.
This work addresses the problem of optimal pricing and hedging of a European option on an illiquid asset Z using two proxies: a liquid asset S and a liquid European option on another liquid asset Y. We assume that the S-hedge is dynamic while the Y-hedge is static. Using the indifference pricing approach, we derive a Hamilton–Jacobi–Bellman equation for the value function. We solve this equation analytically (in quadrature) using an asymptotic expansion around the limit of perfect correlation between assets Y and Z. While in this paper we apply our framework to an incomplete market version of Merton’s credit-equity model, the same approach can be used for other asset classes (equity, commodity, FX, etc.), e.g. for pricing and hedging options with illiquid strikes or illiquid exotic options. 相似文献