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1.
We study the link between beta predictability and the price of risk. An investor who desires exposure to a certain risk factor needs to predict what next period’s beta will be. We use a simple model to show that an ambiguity averse agent’s demand is lower when betas are hard to predict, leading to a reduction in risk premiums. We test the implications for downside betas and VIX betas. We find that they have economically and statistically small prices of risk once we account for the fact that an investor cannot observe ex-post realized betas when determining asset demand.  相似文献   
2.
We study the evolution of investor confidence in 1992-1998 over the chance of individual currencies to converge to the Euro, using data on currency option prices. Convergence risk, which may reflect uncertainty over policy commitment as well as exogenous fundamentals, induces a level of implied volatility in excess of actual volatility. This volatility wedge should gradually decrease as confidence grows over time as convergence policy is maintained, and the risk of a reversal is progressively resolved. Empirically, we indeed find a positive volatility wedge which declines over time only for currencies involved in the Euro convergence process. The wedge and other convergence risk measures are correlated with both exogenous fundamentals and proxies for policy commitment uncertainty. We also find that the wedge responds to policy shocks in an asymmetric fashion, suggesting that policy risk is resolved at different rates after negative and positive shocks. Finally, we estimate a regime-switching model of convergence uncertainty, using data on interest rates, currency rates, and currency option prices. The results confirm the time-varying and asymmetric nature of convergence risk, and indicate that investors demand a risk premium for convergence risk.  相似文献   
3.
We empirically compare Libor and Swap Market Models for thepricing of interest rate derivatives, using panel data on pricesof US caplets and swaptions. A Libor Market Model can directlybe calibrated to observed prices of caplets, whereas a SwapMarket Model is calibrated to a certain set of swaption prices.For both models we analyze how well they price caplets and swaptionsthat were not used for calibration. We show that the Libor MarketModel in general leads to better prediction of derivative pricesthat were not used for calibration than the Swap Market Model.Also, we find that Market Models with a declining volatilityfunction give much better pricing results than a specificationwith a constant volatility function. Finally, we find that modelsthat arechosen to exactly match certain derivative prices areoverfitted; more parsimonious models lead to better predictionsfor derivative prices that were not used for calibration. JELClassification: G12, G13, E43.  相似文献   
4.
This comment shows that the data cost game introduced in Dehez and Tellone (Journal of Public Economic Theory, 2013) coincides with the nonadditive component of the library cost game studied in Driessen, Khmelnitskaya, and Sales (TOP, 2012) where the core, nucleolus, and Shapley value were also investigated.  相似文献   
5.
The purpose of this study is to explain which factors affect the market orientation of semi-public service organizations in their transition from public to private. Change capacity and interdepartmental and organizational system factors are hypothesized to affect market orientation, which is operationalized in behavioural and cultural dimensions. Results of a survey among top-level executives of Dutch housing associations show that interdepartmental and organizational system factors have a significant effect. The most important antecedents, however, are two change capacity factors: process improvement control and top management emphasis. This suggests that change capacity is crucial for understanding market orientation in many service industries.  相似文献   
6.
The importance of project‐based firms is increasing, as they fulfill the growing demands for complex integrated systems and knowledge‐intensive services. While project‐based firms are generally strong in innovating their clients' systems and processes, they seem to be less successful in innovating their own products or services. The reasons behind this are the focus of this paper. The characteristics of project‐based firms are investigated, how these affect management practices for innovation projects, and the influence of these practices on project performance. Using survey data of 203 Dutch firms in the construction, engineering, information technology, and related industries, differences in characteristics between project‐based and nonproject‐based firms are identified. Project‐based firms are distinguished from nonproject‐based firms on the basis of organizational configuration, the complexity of the operational process, and the project management capabilities of the firm. Project‐based firms also differ with regard to their level of collaboration and their innovation strategy, but not in the level of autonomy. A comparison of 135 innovation projects in 96 of the firms shows that project‐based firms do not manage their innovation projects different from other firms. However, the effects of specific management practices on project performance are different, particularly the effects of planning, multidisciplinary teams and heavyweight project leaders. Differences in firm characteristics provide an explanation for the findings. The implication for the innovation management literature is that “best” practices for innovation management are firm dependent.  相似文献   
7.
This paper investigates the effects of having a separate innovation unit on exploration, exploitation, and ambidexterity in manufacturing and service firms according to traditional paradigms of the innovation management discipline that innovation units should be organized in a separate department. Many manufacturing firms have such a unit while few service firms do. This paper sets out to investigate the advantages of having such a unit for exploration, exploitation, and ambidexterity, and whether there are differences between manufacturing and service firms that could help explain why such units are present or absent. The literature suggests that a separate innovation unit has a positive effect on exploration and ambidexterity in manufacturing firms. However, the effect on improving operational activities, that is, exploitation, is unclear. If exploration and exploitation are two ends of a continuum, as the literature suggests, more exploration comes at the cost of exploitation. On the other hand, others have suggested the possibility of an orthogonal relationship, where a separate unit can simultaneously enhance exploration and exploitation. In this paper, the Dutch Community Innovation Survey (CIS) is used to investigate these relationships for manufacturing and service firms, with a question added to the survey regarding the locus of innovation within each firm, that is, mostly within a dedicated innovation unit or dispersed throughout the firm. Our findings show that a separate innovation unit increases exploration, exploitation, and ambidexterity in both manufacturing and service firms. It thereby provides support for the orthogonal view of ambidexterity. A separate unit enhances the ability to exploit and be ambidextrous equally in service and manufacturing firms, but has a weaker positive effect on exploration, and exploratory and ambidextrous performance in service firms. This finding implies that both manufacturing and service firms benefit from having a separate innovation unit, with the advantages being greatest for manufacturing firms. In service firms, such an innovation unit alone may not be sufficient, as such units are expensive to maintain, while they contribute less to ambidextrous performance than in manufacturing firms. Based on the latter finding, future studies should make a distinction between the ability to be ambidextrous in creating exploratory and exploitative innovations, and ambidextrous performance, the ability to gain financially from engaging in both types of activities simultaneously.  相似文献   
8.
The question of how to make agriculture more sustainable is a timely topic. This paper examines the Dutch potato supply chain in the context of its surrounding network. Based on the chain network approach it identifies constraints on conversion to organic potato production from a business administration and a public administration perspective. Two obvious constraints are the demand for ecologically produced products and the problem of cultivating potatoes. However, the potential for conversion is also affected by the way the market and the supply chain are structured, by the coordination of activities, efficiency‐driven actors, relations and interdependencies between actors and by the asymmetrical distribution of power. Furthermore, conversion is constrained by the limited influence of network parties such as NGOs and current government policies. Based on the analysis, the paper questions whether the ecological approach (organic farming) will be more effective than strengthening a more generic approach stimulating the sustainability of the sector. Copyright © 2006 John Wiley & Sons, Ltd and ERP Environment.  相似文献   
9.
Conclusion A more complete analysis of the race factor in Social Security would expand from here in the following ways. First, projected earnings would be forecast for both races to compute race-specific benefit-tax ratios. Second, more complete family formation data would permit the projection of dependent-less benefit-producing events, not just spouse-less benefit-producing events. Additional computations would be performed for female workers and two-earner families. A satisfactory weight (or a rationale for the present one) would be assigned to survivor benefits. The end-result would be benefit-tax ratios for both races, not just for set-piece workers.  相似文献   
10.
We investigate how the benefits of international portfolio diversification differ across countries from the perspective of a local investor. We find that the benefits of investing abroad are largest for investors in developing countries, including when controlling for currency effects. Most of the benefits are obtained from investing outside the region of the home country. These global diversification benefits remain large when controlling for short-sales constraints in developing stock markets. The gains from international portfolio diversification appear to be largest for countries with high country risk. In addition to this cross-sectional evidence, we also provide evidence that diversification benefits vary over time as country risk changes. We find that diversification benefits have decreased for most countries in our sample over the past two decades.  相似文献   
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