0000000000433304
AUTHOR
Aurelio Martínez
RANKING DECISION MAKING UNITS BY MEANS OF SOFT COMPUTING DEA MODELS
This paper presents a method for ranking a set of decision making units according to their level of efficiency and which takes into account uncertainty in the data. Efficiency is analysed using fuzzy DEA techniques and the ranking is based on the statistical analysis of cases that include representative situations. The method enables the removal of the sometimes unrealistic hypothesis of a perfect trade-off between increased inputs and outputs. This model is compared with other DEA models that work with imprecise or fuzzy data. As an illustration, we apply our ranking method to the evaluation of a group of Spanish seaports, as well as teams playing in the Spanish football league. We compar…
The Spanish Football Crisis
Abstract This article analyses the economic results of Spanish professional football teams using data collected over the past few years. These data differ substantially from the information presented in the annual reports of the “Liga de Futbol Profesional” (Spanish professional football league), which are obtained from the initial budgets elaborated each season. Special attention is paid to the two most important teams in the Spanish league: Real Madrid and FC Barcelona. The results of this research show that Spanish football has the same problems as those evidenced by the Italian and English football leagues and, therefore, requires similar solutions in order to be able to survive in fort…
Increasing offensive or defensive efficiency? An analysis of Italian and Spanish football☆
This paper analyses technical efficiency of Italian and Spanish football during three recent seasons, to shed light on the sport performance of professional football clubs. To achieve this we have used mathematical optimisation methods, particularly DEA models, which enable the calculation of the frontiers of efficient production. Some of the most interesting results are the following. Firstly, the Spanish league is clearly more homogeneous and competitive than the Italian league. Secondly, to obtain a better classification in the Italian league, it is much more important to improve defensive, rather than offensive, efficiency. The popular maxim holds in Italy: the best attack begins with a…