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Several authors have argued that acceptability for road pricing is likely to increase with familiarity. The experiences in Stockholm, where a trial period with congestion charges changed the public opinion from negative to positive, support this hypothesis. Analysing acceptability and attitudes in Stockholm allows us to study a situation where the population is in fact familiar with congestion charges, and explore what the decisive factors for acceptability are in such a situation. By analysing a survey collected after the referendum and the subsequent reintroduction of the charges, we analyse the prerequisites to achieve acceptability given that the public is familiar with congestion charges.As expected, low car dependence and good transit supply are associated with high acceptability. But the two most important factors turn out to be beliefs about the charges' effectiveness, and general environmental attitudes. The importance of beliefs and perceptions of the effects of the charges underscores the importance of both careful system design and careful evaluation and results communication. The strong connection between environmental concerns and positive attitudes to congestion charges underscores the importance of considering and “marketing” the charges' environmental effects. In Stockholm, the politicians' decision to “re-label” the congestion charges to “environmental charges” and emphasising their positive effects on air quality may very well have had a positive impact on acceptability.  相似文献   
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The objective of this study is to discuss the rehabilitation of patients in primary health care with problems in the musculoskeletal system from a socioeconomic perspective. A trial with coordinated rehabilitation in primary health care is compared with traditional rehabilitation. This trial, performed in Sweden in 1994, was a two-year prospective and comparative study of consecutively included patients with long-term illnesses due musculoskeletal problems (810 observations). A cost-utility analysis shows that the new rehabilitation program in primary health care is a cost-minimization program for society. There is no significant difference in the quality of life between the trial and control groups. The total cost is lower for rehabilitation in primary health care than for traditional rehabilitation (6 percent). The indirect costs are higher than the direct health care costs (60 percent), and payments from social insurance increased by 8 percent. The health economic results support rehabilitation in primary health care but also points out that this type of rehabilitation can be further improved.  相似文献   
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To learn and adapt, organizations engage widely in Information Technology (IT)-mediated boundary-spanning. This involves making sense of a swath of peripheral information made available by digital means so as to expand local knowledge. Prior research on boundary-spanning has paid scant attention to material differences between IT systems in enabling or constraining such activity. In this article, we argue that material features do matter: features afforded by IT systems have a significant impact on the form and content of boundary-spanning. We analyze material features and related affordances provided by remote diagnostics systems – a family of ubiquitous IT systems. These features allow remote diagnostics systems to collect, store, and continuously analyze data about the state of machinery and related production processes across space, time and organizational boundaries. Organizations use these systems to determine when maintenance intervention is needed, or to improve their production processes. Often, these systems are run by external service providers at remote sites, which become the new ears and the eyes of a focal organization’s production processes. Building on a longitudinal multi-site case study of two organizations, we explore the impacts of remote diagnostics systems on boundary-spanning. We observe that material features afforded by the remote diagnostics led the organizations to change their boundary-spanning in contradictory ways. On one hand, they reinforced existing boundaries. On the other hand, they crossed or cut down others, or created new ones. This suggests that the material features of these systems, when combined with new knowledge creation and sharing practices, within and between the local and the remote sites generate richer, multi-faceted inter-organizational knowledge flows. We surmise that IT’s new material features will continue to significantly shape organizing logics that determine where and when organizational boundaries are drawn and crossed. Future boundary-spanning will increasingly be shaped by socio-technical assemblages brought together by increasingly pervasive IT capabilities.  相似文献   
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We employ a regression‐discontinuity design to identify effects on educational attainment after compulsory school of class size and the number of pupils per weekly teacher hour using administrative rules as instruments. We use Danish administrative panel data. Average class size is 20, about the same as in the US and most European countries. Restricting the sample to observations close to the enrolment discontinuity points where the administrative rules have greatest predictive power, instrumental variables estimates are consistently negative. Estimates from the preferred specification are marginally significant and indicate modest effects in line with earlier studies. Estimates for subgroups are less precise, but they indicate larger effects for pupils from less advantaged backgrounds.  相似文献   
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PARTIAL HEDGING IN A STOCHASTIC VOLATILITY ENVIRONMENT   总被引:1,自引:0,他引:1  
We consider the problem of partial hedging of derivative risk in a stochastic volatility environment. It is related to state-dependent utility maximization problems in classical economics. We derive the dual problem from the Legendre transform of the associated Bellman equation and interpret the optimal strategy as the perfect hedging strategy for a modified claim. Under the assumption that volatility is fast mean-reverting and using a singular perturbation analysis, we derive approximate value functions and strategies that are easy to implement and study. The analysis identifies the usual mean historical volatility and the harmonically averaged long-run volatility as important statistics for such optimization problems without further specification of a stochastic volatility model. The approximation can be improved by specifying a model and can be calibrated for the leverage effect from the implied volatility skew. We study the effectiveness of these strategies using simulated stock paths.  相似文献   
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Most current research argues that globalization of companies is a myth. In spite of this Swedish firms have managed to globalize successfully according to a study by Vahlne and Ivarsson (2014). On a general level this is because they managed to build strong advantages and learned to overcome barriers constituted by cultural, institutional and geographic distance. We elaborate on the expectation that organizational ambidexterity has explanatory power for profitable globalization. We perform case studies of IKEA and AB Volvo to motivate our expectation and illustrate how these firms have been able, or not able, to balance and manage the simultaneous processes of exploration and exploitation. Ambidexterity is included in the package of dynamic capabilities affecting the globalization process positively. We find that being proactive in exploration and improving on the effectiveness in exploitation may lead to successful globalization performance.  相似文献   
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Building on the argument put forward by North and Wallis (1994) that the transaction sector enables economic growth by lowering the costs of transacting, we investigate how internationalizing firms’ host and home country bank relationships affect their international specific investments and growth. Banks provide payment, liquidity, and risk management services, which are essential to international business relationships, yet little is known about how banks affect international business relationships. In a sample of 255 small and medium-sized enterprises (SMEs), we find that host and home country bank relationships affect the dependent variables differently. We contribute to the literature by explicating the role and effects of banks in international business relationships. Our findings have implications for understanding transaction services in international business as well as the choices made by their customers.  相似文献   
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This article is inspired by real‐world phenomena that firms lose customers based on imprecise information and take a long time to recover. If consumers are playing an ordinary repeated game with fixed partners, there is no clear reason why recovery happens slowly. However, if consumers are playing an endogenously repeated game, a class of simple efficient equilibria exhibits the asymmetry of fast loss and slow recovery of customers after a bad signal. Exit is systematic, but formation of a new partnership is random. We also give empirical evidence of our equilibria at an individual‐firm level.  相似文献   
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