The Experts below are selected from a list of 1058817 Experts worldwide ranked by ideXlab platform
Yony Sampaio - One of the best experts on this subject based on the ideXlab platform.
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Efficiency Analysis of public transport systems lessons for institutional planning
47th Annual Transportation Research Forum New York New York March 23-25 2006, 2009Co-Authors: Breno Sampaio, Oswaldo Lima Neto, Yony SampaioAbstract:The Transport System of the Recife Metropolitan Area is under change. As a subsidy to its change an Efficiency Analysis is done with the purpose of highlighting characteristics of the efficient systems. Nineteen transport systems are analyzed, twelve from several countries in Europe and seven from Brazil: nine from Europe and only one from Brazil were found efficient. These systems are characterized by very different power structure and tariff structure. Efficient ones adopted a more democratic power partition among communalities and established a more broad system of tariffs. Among other lessons it is suggested that RMR adopts a structure that allows a more equal partition of the several municipalities comprising the Metro Area including representatives of users groups like workers associations and syndicates. Also it should adopt a more flexible tariff systems giving advantages to usual users at the same time that decreases costs and improves the operational Efficiency.
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Efficiency Analysis of public transport systems lessons for institutional planning
Transportation Research Part A-policy and Practice, 2008Co-Authors: Breno Sampaio, Oswaldo Lima Neto, Yony SampaioAbstract:The transport system of the Recife Metropolitan Area is under change. As a subsidy to its change an Efficiency Analysis is done with the purpose of highlighting characteristics of the efficient systems. Twelve transport system from several countries in Europe and seven from Brazil are analyzed: nine from Europe and only one from Brazil were found efficient. These system are characterized by very different power structure and tariff structure. Efficient ones adopted a more democratic power partition among communalities and established a more broad system of tariffs. Among other lessons it is suggested that RMR adopts a structure that allows a more equal partition of the several municipalities comprising the Metro Area including representatives of users groups like workers associations and syndicates. Also it should adopt a more flexible tariff systems giving advantages to usual users at the same time that decreases costs and improves the operational Efficiency.
Timo Kuosmanen - One of the best experts on this subject based on the ideXlab platform.
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firm and industry level profit Efficiency Analysis using absolute and uniform shadow prices
European Journal of Operational Research, 2010Co-Authors: Timo Kuosmanen, Mika Kortelainen, Timo Sipilainen, Laurens CherchyeAbstract:We discuss the nonparametric approach to profit Efficiency Analysis at the firm and industry levels in the absence of complete price information. Two new insights are developed. First, we measure profit inEfficiency in monetary terms using absolute shadow prices. Second, we evaluate all firms using the same input-output prices. This allows us to aggregate firm-level profit inefficiencies to the overall industry inEfficiency. Besides the measurement of profit losses, the presented approach enables one to recover absolute price information from quantity data. We conduct a series of Monte Carlo simulations to study the performance of the proposed approach in controlled production environments.
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eco Efficiency Analysis of consumer durables using absolute shadow prices
Journal of Productivity Analysis, 2007Co-Authors: Mika Kortelainen, Timo KuosmanenAbstract:We develop a method for eco-Efficiency Analysis of consumer durables that is based on Data Envelopment Analysis (DEA). In contrast to previous product Efficiency studies, we consider the measurement problem from the policy perspective. The innovation of the paper is to measure Efficiency in terms of absolute shadow prices that are optimized endogenously within the model to maximize Efficiency of the good. Thus, the Efficiency measure has a direct economic interpretation as a monetary loss due to inEfficiency, expressed in some currency unit. The advantages as well as technical differences between the proposed approach and the traditional production-side methods are discussed in detail. We illustrate the approach by an application to eco-Efficiency evaluation of Sport Utility Vehicles.
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eco Efficiency Analysis of consumer durables using absolute shadow prices
Public Economics, 2005Co-Authors: Mika Kortelainen, Timo KuosmanenAbstract:We develop a method for eco-Efficiency Analysis of consumer durables by utilizing Data Envelopment Analysis (DEA). In contrast to previous product Efficiency studies, we consider the measurement problem from the perspective of a policy maker. The novel innovation of the paper is to measure Efficiency in terms of absolute shadow prices that are optimized endogenously within the model to maximize Efficiency of the good. Thus, the Efficiency measure has a direct economic interpretation as a monetary loss due to inEfficiency, expressed in some currency unit. The advantages as well as technical differences between the proposed approach and the traditional production-side methods are discussed in detail. We illustrate the approach by an application to eco-Efficiency evaluation of Sport Utility Vehicles.
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Nonparametric Efficiency Analysis under Price Uncertainty: A First-Order Stochastic Dominance Approach
Journal of Productivity Analysis, 2002Co-Authors: Timo Kuosmanen, Thierry PostAbstract:This paper extends the nonparametric approach to Efficiency Analysis to deal with uncertainty of input-output prices. We generalize the notion of economic Efficiency to derive necessary and sufficient first-order stochastic dominance (FSD) Efficiency conditions. Interestingly, the FSD conditions include as limiting cases the traditional conditions for economic Efficiency and technical Efficiency. Furthermore, we propose empirical tests for these FSD conditions, which require minimal assumptions concerning the preferences of the decision-maker and the statistical distribution of the prices. From operational point of view, the FSD conditions can be tested empirically using standard mathematical programming techniques. An empirical application to the Dutch electricity distribution sector illustrates the approach.
Mika Kortelainen - One of the best experts on this subject based on the ideXlab platform.
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firm and industry level profit Efficiency Analysis using absolute and uniform shadow prices
European Journal of Operational Research, 2010Co-Authors: Timo Kuosmanen, Mika Kortelainen, Timo Sipilainen, Laurens CherchyeAbstract:We discuss the nonparametric approach to profit Efficiency Analysis at the firm and industry levels in the absence of complete price information. Two new insights are developed. First, we measure profit inEfficiency in monetary terms using absolute shadow prices. Second, we evaluate all firms using the same input-output prices. This allows us to aggregate firm-level profit inefficiencies to the overall industry inEfficiency. Besides the measurement of profit losses, the presented approach enables one to recover absolute price information from quantity data. We conduct a series of Monte Carlo simulations to study the performance of the proposed approach in controlled production environments.
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eco Efficiency Analysis of consumer durables using absolute shadow prices
Journal of Productivity Analysis, 2007Co-Authors: Mika Kortelainen, Timo KuosmanenAbstract:We develop a method for eco-Efficiency Analysis of consumer durables that is based on Data Envelopment Analysis (DEA). In contrast to previous product Efficiency studies, we consider the measurement problem from the policy perspective. The innovation of the paper is to measure Efficiency in terms of absolute shadow prices that are optimized endogenously within the model to maximize Efficiency of the good. Thus, the Efficiency measure has a direct economic interpretation as a monetary loss due to inEfficiency, expressed in some currency unit. The advantages as well as technical differences between the proposed approach and the traditional production-side methods are discussed in detail. We illustrate the approach by an application to eco-Efficiency evaluation of Sport Utility Vehicles.
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eco Efficiency Analysis of consumer durables using absolute shadow prices
Public Economics, 2005Co-Authors: Mika Kortelainen, Timo KuosmanenAbstract:We develop a method for eco-Efficiency Analysis of consumer durables by utilizing Data Envelopment Analysis (DEA). In contrast to previous product Efficiency studies, we consider the measurement problem from the perspective of a policy maker. The novel innovation of the paper is to measure Efficiency in terms of absolute shadow prices that are optimized endogenously within the model to maximize Efficiency of the good. Thus, the Efficiency measure has a direct economic interpretation as a monetary loss due to inEfficiency, expressed in some currency unit. The advantages as well as technical differences between the proposed approach and the traditional production-side methods are discussed in detail. We illustrate the approach by an application to eco-Efficiency evaluation of Sport Utility Vehicles.
Breno Sampaio - One of the best experts on this subject based on the ideXlab platform.
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Efficiency Analysis of public transport systems lessons for institutional planning
47th Annual Transportation Research Forum New York New York March 23-25 2006, 2009Co-Authors: Breno Sampaio, Oswaldo Lima Neto, Yony SampaioAbstract:The Transport System of the Recife Metropolitan Area is under change. As a subsidy to its change an Efficiency Analysis is done with the purpose of highlighting characteristics of the efficient systems. Nineteen transport systems are analyzed, twelve from several countries in Europe and seven from Brazil: nine from Europe and only one from Brazil were found efficient. These systems are characterized by very different power structure and tariff structure. Efficient ones adopted a more democratic power partition among communalities and established a more broad system of tariffs. Among other lessons it is suggested that RMR adopts a structure that allows a more equal partition of the several municipalities comprising the Metro Area including representatives of users groups like workers associations and syndicates. Also it should adopt a more flexible tariff systems giving advantages to usual users at the same time that decreases costs and improves the operational Efficiency.
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Efficiency Analysis of public transport systems lessons for institutional planning
Transportation Research Part A-policy and Practice, 2008Co-Authors: Breno Sampaio, Oswaldo Lima Neto, Yony SampaioAbstract:The transport system of the Recife Metropolitan Area is under change. As a subsidy to its change an Efficiency Analysis is done with the purpose of highlighting characteristics of the efficient systems. Twelve transport system from several countries in Europe and seven from Brazil are analyzed: nine from Europe and only one from Brazil were found efficient. These system are characterized by very different power structure and tariff structure. Efficient ones adopted a more democratic power partition among communalities and established a more broad system of tariffs. Among other lessons it is suggested that RMR adopts a structure that allows a more equal partition of the several municipalities comprising the Metro Area including representatives of users groups like workers associations and syndicates. Also it should adopt a more flexible tariff systems giving advantages to usual users at the same time that decreases costs and improves the operational Efficiency.
Rahul R Bhosale - One of the best experts on this subject based on the ideXlab platform.
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thermodynamic Efficiency Analysis of zinc oxide based solar driven thermochemical h2o splitting cycle effect of partial pressure of o2 thermal reduction and h2o splitting temperatures
International Journal of Hydrogen Energy, 2018Co-Authors: Rahul R BhosaleAbstract:Abstract In this paper, the thermodynamic Efficiency Analysis of ZnO-based solar-driven thermochemical H2O splitting cycle is performed and compared with the SnO2-based H2O splitting cycle. The HSC Chemistry 7.1 software is used for this Analysis and effects of thermal reduction ( T H ) and water splitting temperature ( T L ) on various thermodynamic parameters associated with the ZnO-based H2O splitting cycle are explored. The thermodynamic equilibrium compositions allied with the ZnO reduction and re-oxidation of Zn via H2O splitting reaction are identified by varying the T H , T L , and P O 2 in the inert gas. The Efficiency Analysis indicates that the highest cycle and solar-to-fuel energy conversion Efficiency equal to 41.1 and 49.5% can be achieved at T H = 1340 K and T L = 650 K. Both efficiencies can be increased further by more than 10% via employing heat recuperation (50%). Based on the cycle and solar-to-fuel energy conversion Efficiency values, the ZnO-based H2O splitting cycle seems to be more attractive than SnO2-based H2O splitting cycle.
