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21.
The theme of technology is particularly important for statistics education because of the role of technology in changing views of statistical knowledge, pedagogy and learning. The interactive multimedia technology of today allows for the creation of powerful learning environments where the focus is on the process that produced the data and its associated variation and the statistical thinking required to solve the problem. However, despite this optimistic view, students' self‐regulation and intrinsic motivation seem to be key concepts for learning in complex interactive computer‐based learning environments. We conclude with observations of teachers and students working with applets. More of these evaluations should be published and/or made available to the statistical community so that both positive and negative teaching experiences can be shared. 相似文献
22.
Olivier Barreteau Patrice Garin Alexandre Dumontier Geraldine Abrami Flavie Cernesson 《Group Decision and Negotiation》2003,12(5):441-461
The purpose of the 1992 French Water Act is to encourage negotiation and dialogue among local stakeholders within a framework which is very similar to a patrimonial approach. Potential use of models in such post-normal approaches is analyzed. Two kinds of models are compared: one is agent-based, the other follows a more classical approach. They are compared according to their contributions as negotiation support tools. This comparison is based on a specific collective decision process dealing with water allocation at the sub-basin scale, in which authors are involved. Both are used to support collective decision processes through simulation of resource use dynamics. Agent-Based Models entail the broadening of spatial information of actors in the process, revealing inter-connected topics not taken into consideration earlier. This makes it possible to remain relevant, despite the sometimes rapidly evolving stakes. The central point of this paper is the implementation, within a practical application, of theories advocating the use of ABM as a collective decision support system. This application promotes a better understanding of the kind of support ABM provides and the way it does so. This is brought about more by re-framing the discussion and modifying the representation of the system on the part of the stakeholders than by providing specific agreements. 相似文献
23.
This field study investigated the relationship between strategic human resource management, internal environmental concern, organizational citizenship behavior for the environment, and environmental performance. The originality of the present research was to link human resource management and environmental management in the Chinese context. Data consisted of 151 matched questionnaires from top management team members, chief executive officers, and frontline workers. The main results indicate that organizational citizenship behavior for the environment fully mediates the relationship between strategic human resource management and environmental performance, and that internal environmental concern moderates the effect of strategic human resource management on organizational citizenship behavior for the environment. 相似文献
24.
Ana Norman‐Lόpez Sean Pascoe Olivier Thébaud Ingrid van Putten James Innes Sarah Jennings Alistair Hobday Bridget Green Eva Plaganyi 《The Australian journal of agricultural and resource economics》2014,58(1):43-59
Rock lobster fisheries are Australia's most valuable wild fisheries in terms of both value of production and value of exports. Different states harvest and export different lobster species, with most of the landings being sent to the Hong Kong market. A perception in the Australian lobster industry is that the different species are independent on the export market, such that a change in landings of one species has no impact on the price of the others. This study investigates the market integration of Australian exports to Hong Kong for the four species and different exporting states. Our results indicate all four species and producers/export states are perceived to be substitutes for one another, so that, in the long run, prices paid to operators in the industry will move together. The integrated nature of the Hong Kong export market for Australian lobster suggests that the potential impacts of alternative fisheries management and development strategies at state and species levels cannot be considered in isolation, at least from an economic perspective. In addition, impacts of external shocks affecting production in one state (e.g. climate change) can be expected to affect all Australian lobster fisheries. 相似文献
25.
26.
Alpaslan Akay Olivier B. Bargain H. Xavier Jara 《The Scandinavian journal of economics》2023,125(4):823-859
Subjective well-being (SWB) data are increasingly used to perform welfare analysis. Interpreted as “experienced utility”, it has recently been compared to “decision utility” using small-scale experiments most often based on stated preferences. We transpose this comparison to the framework of non-experimental and large-scale data commonly used for policy analysis, focusing on the income–leisure domain where redistributive policies operate. Using the British Household Panel Survey, we suggest a “deviation” measure, which is simply the difference between actual working hours and SWB-maximizing hours. We show that about three-quarters of individuals make decisions that are not inconsistent with maximizing their SWB. We discuss the potential channels that explain the lack of optimization when deviations are significantly large. We find proxies for a number of individual and external constraints, and show that constraints alone can explain more than half of the deviations. In our context, deviations partly reflect the inability of the revealed preference approach to account for labor market rigidities, so the actual and SWB-maximizing hours should be used in a complementary manner. The suggested approach based on our deviation metric could help identify labor market frictions. 相似文献
27.
Ulrich A. Müller Michel M. Dacorogna Richard B. Olsen Olivier V. Pictet Matthias Schwarz Claude Morgenegg 《Journal of Banking & Finance》1990,14(6)
In this paper we present a statistical analysis of four foreign exchange spot rates against the U.S. Dollar with several million intra-day prices over 3 years. The analysis also includes gold prices and samples of daily foreign exchange prices over 15 years. The mean absolute changes of logarithmic prices are found to follow a scaling law against the time interval on which they are measured. This empirical law holds although the distributions of the price changes strongly differ for different interval sizes.Systematic variations of the volatility are found even during business hours by an intra-day analysis of price changes. Seasonal heteroskedasticity is observed with a period of one day as well as one week as the result of an analogous intra-week analysis; taking this into account is necessary for any future study of intra-day price change distributions and their generating process. The same type of analysis is also made for the bid-ask spreads. 相似文献
28.
It is sometimes argued that road safety measures or automobile safety standards fail to save lives because safer highways or safer cars induce more dangerous driving. A similar but less extreme view is that ignoring the behavioral adaptation of drivers would bias the cost–benefit analysis of a traffic safety measure. This article derives cost–benefit rules for automobile safety regulation when drivers may adapt their risk‐taking behavior in response to changes in the quality of the road network. The focus is on the financial externalities induced by accidents because of the insurance system as well as on the consequences of drivers' risk aversion. We establish that road safety measures are Pareto improving if their monetary cost is lower than the difference between their (adjusted for risk aversion) direct welfare gain with unchanged behavior and the induced variation in insured losses due to drivers' behavioral adaptation. The article also shows how this rule can be extended to take other accident external costs into account. 相似文献
29.
This overview article sets out the broad themes behind the transformation of local political leadership, in particular the forces that have led to the introduction of stronger forms of local executive, such as directly elected mayors. After setting out the role of local political leadership in traditional local government and different traditions and patterns across Western Europe, the article sets out the likely factors driving the changes toward a stronger form of leadership in the more complex pattern of governing described as local governance: complex networks, the ‘new political culture’, Europeanization of public policy and institutional mimetism. The article observes that the articles in this symposium do not fully confirm these hypotheses, showing the complexity of the responses and the different contexts across Western Europe. The concluding sections draw together the implications of the stronger forms of local executive for the current practice and functioning of local politics and policy‐making: the legitimacy crisis that may have emerged from more autonomous political leaders, which combines with the decline in the conventional measures of local political participation; the lack of complementary institutional resources to assist the performance of the enhanced executive function; and the emergence of a new north‐south divide in governing styles. Cet article général expose les grands thèmes qui sous‐tendent la transformation de l'autorité politique locale, notamment les forces qui ont conduit à l'introduction de formes d'exécutif local plus puissantes, comme l'élection des maires au suffrage direct. Après avoir expliqué le rôle d'une autorité politique locale dans un contexte classique et selon plusieurs traditions ou modèles d'Europe occidentale, l'étude s'intéresse aux facteurs susceptibles de tendre vers une forme plus forte d'autorité dans le cadre pluscompliqué d'une gouvernance locale intégrant réseaux complexes, ‘nouvelle culture politique’, européanisation des politiques publiques et mimétisme institutionnel. Les articles proposés pour ce symposium ne confirment pas totalement ces hypothèses, révélant la sophistication des réponses et la multiplicité des contextes européens. La conclusion déduit ce qu'implique le renforcement de l'exécutif local dans la pratique et le fonctionnement actuels de la politique et du processus décisionnel locaux: crise de légitimité, éventuellement née de leaders politiques plus autonomes, combinée au déclin des dispositifs classiques de participation locale; manque de ressources institutionnelles complémentaires qui faciliteraient la mise en ?uvre de la nouvelle fonction exécutive; émergence d'une scission nord‐sud dans les styles de gouvernement. 相似文献
30.
Redesigning the Employment Protection System 总被引:1,自引:1,他引:0