Contents and Preface

application/pdfThis workshop is supported by JSPS KAKENHI Grant Number 22310098 under the title “Theory and Applications of Dynamic DEA with Network Structure.”othe

The effects of environmental regulation on the efficiency of distribution electricity companies in Spain

The objective of this work is to detect what problems of inefficiency electricity distribution companies have, in order to disseminate this information and to allow distributors and public agencies to be more precise in calculating their costs. In turn, this will have an indirect impact on the price of the kilowatt in order to try to reduce its volatility. It should be noted that the volatility of the kilowatt price is mainly due to distribution costs and more specifically to access tolls. In the present paper, knowing that the distribution activity is a regulated activity, the efficiency in the electricity distribution companies will be studied. To this end, a study has been carried out on the efficiency of the main electricity distribution companies in Spain (Endesa, Iberdola, Union Fenosa, EDP and Viesgo) during the period of 2006-2015. The technique used was the Multi-period efficiency measurement in Data Envelopment Analysis, an input-oriented model at constant scales, working with panel data. The conclusions in this paper indicate that Spanish electricity distribution companies could improve their levels of efficiency if they improve the use of some inputs. This analysis demonstrates that overcapacity and deficit tariff have a negative influence on the efficiency level. Finally, this paper is useful as it shows that regulation again plays an essential role in regulated activities, requiring a commitment on the part of the State in order to improve efficiency in regulated activitie

Stakeholder perception on corporate reputation and management efficiency : Evidence from the Spanish Defence sector

The Spanish Ministry of Defence was the first to elaborate a Social Responsibility (SR) report stating that efficiency plays a leading role. The territorial organs to manage the image and trust in the armed forces, are given by the Spanish Defence Delegations (SDD), and all of them are certified with a seal of excellence. In this work, defence economics and analysis of efficiency line up with the concept of SR. The main aim is to analyse if SR policy has an effective influence and, as a consequence, a high degree of performance can be expected. To this end, given a set of discretionary variables, the efficiency of the 19 SDD during the 2015-2017 period is analysed by means of Data Envelopment Analysis technique. A bootstrap procedure is used to eliminate the bias of the estimates and obtain a robust ranking. The results show an unusual positive behavior in public sector

TEA-IS: A hybrid DEA-TOPSIS approach for assessing performance and synergy in Chinese health care

YesThis paper presents an assessment of the Chinese healthcare system in 31 provinces for a 10-year period in light of relevant physical and human resource variables. First, a novel TEA-IS (Trigonometric Envelopment Analysis for Ideal Solutions) model is developed to assess healthcare efficiency at the province level. Machine learning methods are also employed to predict high-low performance and the synergistic Chinese healthcare province in terms of contextual variables. The results indicate that synergy has played a pivotal role in the Chinese healthcare systems, not only by triggering higher performance levels due to the progressive adoption of best practices over the course of time, but also by being closely related to different socioeconomic and demographic variables, such as the illiteracy rate. It is possible to claim that healthcare performance has remained stable in China over the past two decades, performance and synergy at the province level are still heterogeneous

Essays on efficiency and international tourism

RESUMEN: Esta tesis doctoral consta de tres ensayos sobre la economía del turismo. En el primer y tercer ensayo se realiza un análisis de eficiencia turística de las regiones españolas y de los factores que pueden estar determinando su evolución. En el segundo ensayo se hace una profunda revisión bibliográfica sobre la literatura que analiza la eficiencia turística a nivel mundial. El período de análisis abarca desde la última mitad del siglo XX (entre 1978 en el caso del estudio de la bibliografía turística, año en el que Charnes, Cooper y Rhodes introducen el Análisis Envolvente de Datos) hasta el periodo más reciente de nuestra economía (2018 en el tercer ensayo). En los dos ensayos que analizan la eficiencia turística en España el periodo comprende desde inicios del siglo XXI (2008 en el caso de la eficiencia de los destinos turísticos españoles) hasta los datos más actuales disponibles en este momento.ABSTRACT: This doctoral thesis consists of three essays on the economics of tourism. In the first and third essay an analysis of tourist efficiency of the Spanish regions and of the factors that may be determining their evolution is carried out. In the second essay, an in-depth bibliographical review is done on the literature that analyzes tourism efficiency worldwide. The analysis period covers from the last half of the twentieth century (between 1978 in the case of the study of the tourist bibliography, year in which Charnes, Cooper and Rhodes introduce the Data Envelope Analysis) until the most recent period of our economy ( 2018 in the third essay). In the two essays that analyze tourism efficiency in Spain, the period ranges from the beginning of the 21st century (2008 in the case of the efficiency of Spanish tourist destinations) to the most current data available at this time

A Bargaining Game model for performance assessment in network DEA considering sub-networks:A real case study in Banking

Several network-data envelopment analysis (DEA) performance assessment models have been proposed in the literature; however, the conflicts between stages and insufficient number of decision-making units (DMUs) challenge the researchers. In this paper, a novel game-DEA model is proposed for efficiency assessment of network structure DMUs. We propose a two-stage modeling, where in the first stage network is divided into several sub-networks; we at the same time categorize input variables to measure efficiency of sub-networks within each input category. In the second stage, we calculate efficiency of the network by aggregating efficiency scores of sub-networks within each category. In this way, the issue of insufficient number of DMUs when there are many input/output variables can be handled as well. One of the main contributions of this paper is assuming each category and stage as a player in Nash bargaining game. Using the concept borrowed from Nash bargaining game model, the proposed game-DEA model tries to maximize distances of efficiency scores of each player form their corresponding breakdown points. The usefulness of the model is presented using a real case study to measure the efficiency of bank branches

The state of the art development of AHP (1979-2017): A literature review with a social network analysis

Although many papers describe the evolution of the analytic hierarchy process (AHP), most adopt a subjective approach. This paper examines the pattern of development of the AHP research field using social network analysis and scientometrics, and identifies its intellectual structure. The objectives are: (i) to trace the pattern of development of AHP research; (ii) to identify the patterns of collaboration among authors; (iii) to identify the most important papers underpinning the development of AHP; and (iv) to discover recent areas of interest. We analyse two types of networks: social networks, that is, co-authorship networks, and cognitive mapping or the network of disciplines affected by AHP. Our analyses are based on 8441 papers published between 1979 and 2017, retrieved from the ISI Web of Science database. To provide a longitudinal perspective on the pattern of evolution of AHP, we analyse these two types of networks during the three periods 1979?1990, 1991?2001 and 2002?2017. We provide some basic statistics on AHP journals and researchers, review the main topics and applications of integrated AHPs and provide direction for future research by highlighting some open questions

Measuring highway efficiency:A DEA approach and the Malquist index

A growing concern exists regarding the efficiency of public resources spent in transport infrastructures. In this paper, we measure the efficiency of seven highway projects in Portugal over the past decade by means of a data envelopment analysis and the Malmquist productivity and efficiency indices. We distinguish between technical and technological efficiency and find that most highways face a reduction over time in both types of efficiency. This reduction is mainly due to an increase in operating and maintenance costs, follow-up investments, and a decline in traffic. Some highways only experience a reduction in technological efficiency after a decrease in traffic. They compensate with cost controls and stable investments. While controlling for scale efficiencies, we find a lack of pure technical efficiency in highways that are not subject to a competitive environment, which produces a lack of incentives for better management. Not only does evidence exist of poor management due to a lack of competition, but the increased use of outsourcing also increases inefficiencies. The introduction of tolls and the outburst of the economic crisis in Portugal have substantially reduced traffic that further contributes to inefficiency. The local context, such as highways in low-income areas and rural regions with a lower traffic density, also affects highway performance