The Experts below are selected from a list of 90231 Experts worldwide ranked by ideXlab platform
Matthew J Kotchen - One of the best experts on this subject based on the ideXlab platform.
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green markets and private provision of public goods
Journal of Political Economy, 2006Co-Authors: Matthew J KotchenAbstract:This paper develops a general model of private provision of a public good that includes the option to consume an impure public good. The model is used to investigate the positive and normative consequences of "green markets," which are based on technologies with Joint Production of a private good and an environmental public good. It is shown that under reasonable conditions green markets can have beneficial or detrimental effects on environmental quality and social welfare. The analysis applies equally to nonenvironmental choice settings, with examples ranging from socially responsible investments to commercial activities associated with charitable fund-raising.
Douglas R Wholey - One of the best experts on this subject based on the ideXlab platform.
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enter at your own risk hmo participation and enrollment in the medicare risk market
Economic Inquiry, 2000Co-Authors: Jean Marie Abraham, Ashish Arora, Martin Gaynor, Douglas R WholeyAbstract:We examine HMO participation and enrollment in the Medicare risk market for the years 1990 to 1995. We develop a profit-maximization model of HMO behavior, which explicitly considers potential linkages between an HMO's Production decision in the commercial enrollee market and its participation and Production decisions in the Medicare risk market. Our results suggest that the payment rate is a primary determinant of HMO participation, while the price of a supplemental Medicare insurance policy positively affects HMO Medicare enrollment. We also find empirical support for the existence of complementarities in the Joint Production of an HMO's commercial and Medicare products. Copyright 2000 by Oxford University Press.
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enter at your own risk hmo participation and enrollment in the medicarerisk market
National Bureau of Economic Research, 1999Co-Authors: Jean Marie Abraham, Ashish Arora, Martin Gaynor, Douglas R WholeyAbstract:We examine HMO participation and enrollment in the Medicare risk market for the years 1990 to 1995. We develop a profit- maximization model of HMO behavior, which explicitly considers potential linkages between an HMO's Production decision in the commercial enrollee market and its participation and Production decisions in the Medicare risk market. Our results suggest that the payment rate is a primary determinant of HMO participation, while the price of a supplemental Medicare insurance policy positively affects HMO Medicare enrollment. We also find empirical support for the existence of complementarities in the Joint Production of an HMO's commercial and Medicare products.
Robert Pellerin - One of the best experts on this subject based on the ideXlab platform.
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Joint Production quality and maintenance control of a two machine line subject to operation dependent and quality dependent failures
International Journal of Production Economics, 2018Co-Authors: Bassem Bouslah, Ali Gharbi, Robert PellerinAbstract:Abstract In the literature of operations management, the reliability of multistage manufacturing systems has been always modeled with uncorrelated failure processes where the reliability of each machine is assumed to be independent of any failure in the other machines. However, in real-life, machines may be subject to complex correlated failures such as increased degradation and tool wear caused by defective parts produced in preceding machines. Ignoring the correlation effect when modeling the reliability of multistage systems generally results in inaccurate estimation of the overall system reliability and inefficient operations policy accordingly. In this paper, we deal with the problem of integrated Production, quality and maintenance control of Production lines where machines are subject to quality and reliability operation-dependent degradation. Also, machines' reliability is correlated with the level of incoming product quality. For illustration, we study in this paper a two-machine line model. We propose a combined mathematics and simulation-based modeling framework to Jointly optimize the Production, quality and maintenance control settings. The objective is to minimize the total cost incurred under a constraint on the outgoing quality. Numerical examples are given to show the effectiveness of the resolution approach and to study important aspects in multistage systems such as the allocation of inspection and maintenance efforts, the Quality-Reliability chain and the interdependence between Production, quality and maintenance control settings. The results obtained demonstrate that failure correlation has a significant impact on the optimal control settings and that maintenance and quality control activities in preceding stages can play an important role in the reliability improvement of the subsequent machines.
Maria Aparecida Azevedo Pereira Da Silva - One of the best experts on this subject based on the ideXlab platform.
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product diversification to enhance economic viability of second generation ethanol Production in brazil the case of the sugar and ethanol Joint Production
Chemical Engineering Research & Design, 2014Co-Authors: Juliana Q Albarelli, Adriano V Ensinas, Maria Aparecida Azevedo Pereira Da SilvaAbstract:Abstract Commercial simulator Aspen Plus® was used to simulate the conventional processes of the autonomous distillery producing ethanol and the Joint Production of sugar and ethanol. Changes in conventional processes were evaluated to increase electricity and second generation ethanol Production using bagasse fine fraction composed by parenchyma cells (P-fraction). The evaluated processes were thermal and water integrated. The results indicated that the integration of the second generation process to the conventional processes was possible after thermal and water integration. The economic analysis showed that the second generation process integrated to the Joint Production presented lower payback time, 2.3 years, in comparison with this process integrated to the autonomous distillery, 4.7 years. Due to the high enzyme costs, the cases without second generation ethanol Production presented higher economic viability. Product diversification, as sugar and ethanol Production in the same site, lowered the impact of enzymes cost on the payback time of second generation process, showing that the integration of the second generation ethanol Production process to the conventional sugar Production process could be a step to cellulosic ethanol Production feasibility in sugarcane mills.
Cory Koedel - One of the best experts on this subject based on the ideXlab platform.
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an empirical analysis of teacher spillover effects in secondary school
Economics of Education Review, 2009Co-Authors: Cory KoedelAbstract:Abstract This paper examines whether educational Production in secondary school involves Joint Production among teachers across subjects. In doing so, it also provides insights into the reliability of value-added modeling. Teacher value-added to reading test scores is estimated for four different teacher types: English, math, science and social-studies. The initial results indicate that reading output is Jointly produced by math and English teachers. However, while falsification tests confirm the English-teacher effects, they cast some doubt about whether the math-teacher effects are free from sorting bias. The results offer a mixed review of the value-added methodology, suggesting that it can be useful but should be implemented cautiously.
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an empirical analysis of teacher spillover effects in secondary school
2008Co-Authors: Cory KoedelAbstract:This paper examines whether educational Production in secondary school involves Joint Production among teachers across subjects. In doing so, it also provides insights into the reliability of value-added modeling. Teacher value- added to reading test scores is estimated for four different teacher types: English, math, science and social studies. While the initial results indicate that reading output is Jointly produced by math and English teachers, post-estimation falsification tests debunk the math-teacher effects - that is, there is in fact no evidence of Joint Production in secondary school. The results offer a mixed review of the value-added methodology, suggesting that it may be useful in some contexts but not others.
