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421.
The aim of this paper was to estimate the effect of obesity on the employment probability for Italian men and women accounting for both observed and unobserved confounding. We use microdata collected by the Italian National Statistical Office for the year 2009 during a multi‐scope survey of Italian households. The employment–obesity relationship is estimated after controlling for observed confounding by using probit regression and a propensity score weighting approach. To control for both observed and unobserved confounding (endogeneity), a semiparametric recursive bivariate probit model is employed instead. Our findings suggest that obesity has a significant negative effect on the employment probability and that endogeneity might not be an important issue. 相似文献
422.
Claudio Macci Gabriele Stabile Giovanni Luca Torrisi 《Scandinavian actuarial journal》2013,2013(6):417-432
We consider risk processes with delayed claims in a Markovian environment, and we study the asymptotic behaviour of finite and infinite horizon ruin probabilities under the small claim assumption. We also consider multivariate risk processes of the same kind, and we give upper and lower bounds for the Lundberg parameters of the corresponding total reserve. Our results have strong analogies with those one in the paper by Juri (Super modular order and Lundberg exponents, 2002). 相似文献
423.
424.
Luca Secondi María Leticia Meseguer-Santamaría Jose Mondéjar-Jiménez Manuel Vargas-Vargas 《The Service Industries Journal》2013,33(10):1659-1668
Cultural tourism has traditionally been approached in terms of its appeal to visitors wishing to find out about or get involved in places or to extend their education or to enjoy historical buildings and heritage managed for tourism. This is tourism that has most encouraged activities to preserve the environment and historical/artistic heritage, getting away from mass tourist models, destination impact and seasonality. The aim of this study is to develop a model to identify the elements that help modify the cultural tourist's motivations: the structure of the tourism industry (enterprise infrastructure factors, city infrastructure factors, tourist mobility and tourist resources) and value for money. The use of partial least square method allows us to confirm the proposed correlations and to validate a model. 相似文献
425.
Improving the outcomes of youth with medical limitations: Evidence from the National Job Corps Study
Heinrich Hock Dara Lee Luca Tim Kautz David Stapleton 《Journal of Economics & Management Strategy》2023,32(3):636-656
Improving work outcomes for youth with disabilities and reducing their reliance on disability benefits are important policy priorities, but existing interventions have shown limited promise. We provide new evidence to inform this discussion by re-analyzing data from the 1990s National Job Corps Study, a randomized field experiment conducted nationwide in the United States. Job Corps, which provides comprehensive training to economically disadvantaged youth, is the nation's largest youth program outside of the school system. We examine youth who had medical limitations when they enrolled in the experiment, a group that has not previously been studied. During the 4 years after random assignment, participation in Job Corps increased the earnings of youth with medical limitations—substantially more so than for youth without medical limitations—and additionally reduced their receipt of disability cash benefits. Interventions designed specifically for such youth have not typically demonstrated reductions in benefit receipt. Hence, our re-analysis of the field experiment suggests that Job Corps could be a promising model for helping some youth with disabilities gain a foothold in the labor market and achieve greater self-sufficiency. 相似文献
426.
In recent years, there have been many cost-benefit studies on aviation safety, which deal mainly with economic issues, omitting some strictly technical aspects. This study compares aircraft accidents in relation to the characteristics of the aircraft, environmental conditions, route, and traffic type. The study was conducted using a database of over 1500 aircraft accidents worldwide, occurring between 1985 and 2010. The data were processed and then aggregated into groups, using cluster analysis based on an algorithm of partition binary ‘Hard c means.’ For each cluster, the ‘cluster representative’ accident was identified as the average of all the different characteristics of the accident. Moreover, a ‘hazard index’ was defined for each cluster (according to annual movements); using this index, it was possible to establish the dangerousness of each ‘cluster’ in terms of aviation accidents. Obtained results allowed the construction of an easy-to-use predictive model for accidents using multivariate analysis. 相似文献
427.
Recent literature showed that the choice between a price or quantity control depends, in part, on the dynamic structure of cost uncertainty. Temporary shocks to abatement cost favors the use of a price control, while permanent shocks favor a quantity control. Unfortunately, the importance of this assumption to the optimal choice has not yet received wide attention among economists. We analyze the regulatory sproblem in an alternative setting and reproduce these results. Our contribution is the simplicity of the model and the accessibility of the results, which reinforce the critical role played by the assumed structure of uncertainty. 相似文献
428.
Luca Zamparelli 《European Journal of the History of Economic Thought》2013,20(4):665-694
Abstract This paper proposes a textual analysis of Marshall's theory of firm pricing behavior under competitive conditions. Average cost and marginal cost pricing theories have very distinct origins as they are rooted, respectively, in the classical and marginalistic theory of competition. I analyze to what extent and under which circumstances the two theories joined in the work of Alfred Marshall; and I argue that, even though only partial evidence can be found to support the adoption of the notion of marginal cost pricing by Marshall, he developed some concepts, such as the distinction between short and long periods and the notion of quasi-rents, which turned out to be fundamental for the joint acceptance of marginal cost and average cost pricing principles by the Marshallian school. 相似文献
429.
Thomas Pregger Diego Luca de Tena Stephan Schmid Bernhard Wille-Haussmann Thomas Pollok Torsten Sowa 《能源经济杂志》2013,37(4):297-306
Electric mobility will play a key role for the transformation of the energy supply in Germany [the “Energiewende”]. A successful market development of plug-in hybrids and battery electric vehicles and a full fleet penetration in the long-term are the most efficient and effective measure for integrating large amounts of renewable energy into the transport sector and for reaching the efficiency targets. These new electricity consumers in the supply system will cause additional electricity loads strongly dependent on the mobility needs of the vehicle users. A controlled battery charging is able to avoid new peak demands and to increase the efficiency of the power generation system by using excess power. By scenario analysis, the German Aerospace Center (DLR) in cooperation with the Fraunhofer Institute for Solar Energy Systems (ISE) and the Institute for High Voltage Technology of the RWTH Aachen investigated a possible successful development path of electric mobility in Germany and its integration into and interaction with the future power supply system. From both perspectives—the one of the total supply system as well as the other of local distribution grids—the results show promising potentials but also limits. 相似文献
430.
This paper examines the equivalence among price‐modifying and quantity‐fixing international trade policies in a differential game. We employ two well‐known capital accumulation dynamics for firms, due to Nerlove and Arrow and to Ramsey, respectively. We show that, in both cases, open‐loop and closed‐loop Nash equilibria coincide. Under the former accumulation the tariff‐quota equivalence holds, while, in general, it does not under the latter. Moreover, in the Ramsey model, the country setting the trade policy (weakly) prefers a quantity‐equivalent import quota to the adoption of the tariff. These results are not a consequence of the equilibrium concept we adopt (with and without market power), but directly follow from the interplay between market power and the properties of accumulation dynamics. 相似文献