We examine the impact of the introduction of VIX exchange‐traded products (ETPs) on the information content and pricing efficiency of VIX futures. We document that trades in VIX futures have become less informative and that pricing errors exhibit more persistence after the introduction of VIX ETPs. In addition, we observe that the price process of the VIX futures has become noisier over time. These findings suggest that the introduction of the VIX ETPs had a prominent effect on the properties and dynamics of the VIX futures. 相似文献
In biophysical terms, such as energy return on investment (EROI), energy sources for the global economy have grown more expensive over the last few decades. This trend is likely to be more pronounced in the near-term future as conventional oil and gas are depleted and difficult-to-extract unconventional oil and gas become a larger part of the fossil-fuel supply. On the one hand, this will lead to “energy sprawl”—the growth of the energy sector, as this sector consumes a much larger portion of the energy it extracts—leaving less energy surplus for other sectors. On the other hand, we will see an unsustainable imbalance between the fuel prices that fossil-fuel companies will need to meet their costs and the fuel prices that the larger economy can afford to pay. This article reviews the historical role of inexpensive energy in economic growth, discusses the declining availability of conventional oil resources, and examines the increasing reliance on expensive, unconventional petroleum resources such as shale oil in the United States. 相似文献
Companies increasingly face the need for transformation in today’s rapidly changing business environment, characterized by major shifts in technology, regulation, and customer behavior. A lack of strategic risk insight and foresight leaves many incumbents insufficiently prepared in the face of such deep uncertainty. We argue that traditional risk management falls short because it predominantly focuses on strategy execution while leaving strategy formulation largely untouched. Moreover, an administrative-heavy risk management process can create strategic inertia and a misleading sense of control. In today’s dynamic business context, companies must not only increase the speed and impact of their strategy execution but also continuously explore the development of new strategies in response to disruptive events or emerging opportunities. Our research shows how leading companies develop a strategic risk management (SRM) capability to increase their resilience and agility in response to deep uncertainty. SRM takes a strategic, forward-looking perspective and focuses on strengthening processes, people, and practices for purposefully integrating risk into the strategy formulation process. This article offers a framework with three proven configurations of content and timing integration, risk management roles, and leading practices that enable effective SRM. 相似文献
This paper explores the potential of university-industry technology transfer through science-based entrepreneurship education (SBEE). The scientific literature focuses mostly on enabling university-industry technology transfer via university-industry collaboration in research, and not so much in (science) education. The paper identifies four strands of relevant literature for further theorizing SBEE principles to research its contribution to industry-technology transfer: 1. Embedding entrepreneurship education in universities; 2. Balancing theory and practice of entrepreneurship education; 3. Cultivating an entrepreneurial mindset through entrepreneurship education; and 4. Creating spin-offs through entrepreneurship education. One of the main theoretical contributions of this paper is, that SBEE is different from regular entrepreneurship education in its need for being firmly embedded in a science, technology and R&D environment, both within and outside the university. This is important in order to give SBEE students the opportunity to gain experience with handling the hurdles for successful university-industry technology transfer. The main empirical finding is that elements in the program, related to for example the balance between teaching entrepreneurship through theory and experiential learning, are not systematically covered. It means that fundamental questions such as: Can entrepreneurship be indeed taught? Which elements of entrepreneurship can be taught through theory, and which ones must be experienced in practice? are currently left unanswered. Systematic coverage of these questions enables a better exploitation of the possibilities that SBEE offers for university-industry technology transfer.
In this paper, we study the effect of subsidised on-the-jobtraining, training for the unemployed and pure wage subsidieson job tenure. Correcting for selection biases, we find thateach of the labour market policies increases the length of jobtenure. Despite the sensitivity of the estimates to the parametricassumptions with respect to the unobservables, the effect ofsubsidised on-the-job training schemes is always found to besignificantly positive. Training programs for the unemployedand pure wage subsidies always have a positive, but statisticallynon-significant effect Our results provide some support forhuman capital theories as opposed to matching theories. 相似文献
This paper generalizes Porter’s notion of the value chain for the analysis of service industries. The generalization entails
that the flow and the physical transformation and assembly of goods that are characteristic of manufacturing are generalized
into flows and transformation of data and flows and transformation of the physical and mental condition of people that are
characteristic of many service industries. Utility is generalized from the utilities of forms and function of goods, characteristic
of manufacturing, to the utilities of time, place, convenience, speed, safety, entertainment, physical and mental well-being,
knowledge and mental capacity, funding and assurance. The analysis yields a categorization of industries according to central
features of the value adding process. Here, the analysis is used to identify sources of (in)efficiency of scale, scope and
experience, along the value chain.