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151.
152.
Sissel Jensen 《Review of Economic Design》2006,10(1):9-29
The paper studies how the optimal nonlinear quantity-payment allocation can be truthfully implemented by optional tariffs in a differentiated goods duopoly. Consumers choose from a menu of tariffs and are subsequently billed according to this. We find that implementation by simple two part tariffs may not be a feasible strategy in a duopoly because the optimal nonlinear tariff exhibits a convexity for lower quantities. We show that the optimal outcome can be implemented if the firms can use two part tariffs with inclusive consumption. The fixed fee includes a free consumption allowance, whereas subsequent consumption is charged according to a steep unit price. That way the firm is able to secure voluntary participation without violating the incentive constraint. The paper shows some examples from the telecommunications industry where firms offer two part tariffs with free call minutes to low demand segments. 相似文献
153.
Paul E. Jensen 《Review of International Economics》2006,14(1):104-118
This paper re‐examines the relationship between entry barriers and home market effects and departs from recent work by using returns to scale as a direct measure of entry barriers as opposed to relying on the level of product differentiation as an indirect proxy for barriers to entry. In contrast to earlier work, results of this study do not indicate a significant relationship between home market effects and entry barriers. In addition, examination of trade costs reveals the importance of these costs in the numéraire sector. These two observations are consistent with the theoretical prediction that home market effects are insignificant in the presence of symmetric trade costs across sectors. Consequently, a more direct measure of barriers to entry and an explicit consideration of trade costs indicate that the link between home market effects and barriers to entry is not as strong as predicted by previous work. 相似文献
154.
Robert E. Jensen 《Futures》1981,13(6):489-498
If odds ratios elicited from experts (eg via Delphi) are translated into scenario probabilities by nonsymmetric matrix eigenvector analysis, then such problems as inconsistency between individuals' responses can be conveniently analysed, and revised, more consistent responses can be sought. 相似文献
155.
Claudia S. P. Fernandez Cheryl C. Noble Elizabeth T. Jensen Janet Chapin 《Journal of Leadership Studies》2016,9(4):6-19
The complex medical environment of today calls for physicians to have an array of leadership skills in addition to a thorough knowledge of their specific practice areas. The American College of Obstetrics and Gynecologists (ACOG) Robert C. Cefalo National Leadership Institute is a 3.5‐day intensive leadership development course targeted to physician leaders. A group of 37 physicians completed the ACOG National Leadership Institute in spring of 2013. At course completion and 6‐month postcourse, participants were asked to complete a retrospective pre‐ and posttest of perceived skill levels in 10 targeted competency areas. Course completion and 6‐month postcourse scores indicated statistically significant improvements in scores on all 10 competency areas, which was supported by a Wilcoxon signed‐rank test of median score difference. Qualitative data gathered at the 6‐month postcourse survey provide examples of how participants had applied their skills. The data presented in the current study suggested that intensive, “short‐burst,” experiential leadership training is an effective approach for leadership skills development in physicians. 相似文献
156.
157.
Bruce A. Lawrence Ted R. Miller Alan F. Jensen Deborah A. Fisher William W. Zamula 《International journal of injury control and safety promotion》2013,20(2):97-113
This paper describes a data-driven injury cost model (ICM) developed to estimate the costs associated with non-fatal consumer product injuries. The modeling effort combines information by diagnosis from the US Consumer Product Safety Commission’s National Electronic Injury Surveillance System (NEISS) and 17 other large data sets. The ICM contains four aggregated cost components: (1) medical costs, (2) work losses, (3) quality of life and pain and suffering costs, and (4) product liability insurance administration and litigation costs. The ICM estimates societal costs, which are broader than costs to any individual group, such as victims, insurers, or product manufacturers. Costs associated with consumer product injuries are estimated to be approximately $500 billion in 1996, accounting for nearly one-third of the total annual injury costs. We examine injury costs in several ways, including by major product category, by sex and age of victims, by body part injured, by injury diagnosis, and by highest level of medical treatment received. We also rank the 10 leading consumer products that account for injury costs overall and within different age groups. Products such as stairs and floors are among the top 10 for all age groups. Other products, however, are more closely tied to injuries at particular stages of life (e.g., infant/toddler, child, young adult, elderly). These cost estimates are useful in assessing which products and types of injuries impose the greatest costs on society and for identifying areas for focused injury prevention efforts. 相似文献
158.
We apply a bivariate probit model and cluster analysis to German household survey data to evaluate factors influencing consumption of conventional and organic potatoes. Results show there is a positive but insignificant correlation between the consumption of conventional and organic potatoes and consumers associate organic potatoes with healthy ingredients, trusted origin, and food safety. Furthermore, consumers' sociodemographics such as education and children in households affect their choice of potatoes. Cluster analysis results group potato consumers into the market segments “Industry trusting,” “Healthy diet oriented,” and “Price oriented.” These results suggest an adoption of different marketing strategies to promote fresh potatoes to the different market segments. 相似文献
159.
Oystein Jensen 《旅游业当前问题》2013,16(2):133-163
This article elucidates how organised tourism initiated by the international tour operator system can involve local actors in a developing country with a young tourism industry. The empirical basis is incoming tour operators in Madagascar with the focus on their policies and practices in getting involved with local tour operators and individual providers of service by the realisation of their programs for international markets. The study adopts a qualitative approach based on personal interviews with incoming tour operators located in the capital city of Madagascar. The central theoretical frameworks applied are primarily from the research literature on partner selection and cooperation in exchange relationships (channels of distribution) and contract theory and the results are discussed within in the wider perspective of local competence development and sustainable tourism. The findings demonstrate that incoming tour operators have a quite limited involvement in the cooperation with local actors and uncover the problems linked to partner-specific, local attraction-specific and context-specific factors. The study offers an insight into a field that has been scarcely illuminated empirically by research and it is believed that the results have relevance beyond the geographical context of the research. 相似文献
160.
Lars Gårn Hansen Frank Jensen Linda Nøstbakken 《Environmental and Resource Economics》2014,58(4):539-562
Quotas are frequently used in the management of renewable resources and emissions. However, in many industries there is concern about their basic effectiveness due to non-compliance. We develop an enforcement model of a quota-regulated resource and focus on a situation with significant non-compliance and exogenous constraints on fines and enforcement budget. We propose a new enforcement system based on self-reporting of excess extraction and explicit differentiation of inspection rates depending on compliance history. We use differentiated inspections to induce firms to self-report excess extraction. This system increases the effectiveness of the quota by allowing the regulator to implement a wider range of aggregate extraction targets than under traditional enforcement, while ensuring an efficient allocation of extraction. In addition, inspection costs can be reduced without reductions in welfare. 相似文献