The aim of the paper is to use the data envelopment analysis (DEA) for mining in Zacatecas and provide efficiency indicators in the years 1998, 2003, and 2008. We compare the performance of the state of Zacatecas with other mining states in Mexico. Then the empirical analysis extends to specific...

In this paper it is carried out a methodology based on Fuzzy Logic tech- niques for searching a solution which has been reached by consensus. This solution is related to labour reform and considers Trade Unions, Employers' Associations, and Government opinions. The proposed model belongs to the...

The main objective of this study is the identification of the explanatory factors on the differences in efficiency in the retail sector enterprises (CNAE-09 4711) in Spain, paying particular attention to the regulation in order to clarify the way in which this regulation has influenced the...

In this work, we propose an integer linear programming model for production scheduling of a group of finished products with independent demand. The model for the master production scheduling (MPS) is designed by considering production and inventory costs, as well as the productive process...

This paper calculates the efficiency of senior residences in Saragossa and province by means of the Data Envelopment Analysis (DEA). The study of the efficiency has been divided in two stages: in the first one the efficiency of the productive system of senior residences is calculated and...

The theory of restrictions (TOC) is a philosophy of continuous improvement, which focuses on the weakest link in the chain, to improve the performance of the production system. The purpose of the research was to determine the quantities to be made of each product and its production sequence in a...

Timetabling scheduling is classified as a combinatorial problem for which there are multiple solution alternatives, including the integer programming. However, the modeling of operational rules and the size of real problems makes its use not common compared to other techniques. This article...

This study analyse the technical efficiency in terms of innovation of the firms in the service sector in the Uruguayan economy. Therefore, we use data from the 2010-2012 Innovation Activities Survey of the National Agency for Research and Innovation (ANII). In a first stage, we estimate the...

The goal of this paper is to analyze the local government's perception about the significance of a discrete multi-criteria method for assessing proposals for urban expansion (PUE). The study case was performed, by using PROMETHEE method, in Río Cuarto, Córdoba, Argentina. The decision matrix...

Facing an hypothetical, but increasingly, case of default risk on a mortgage or a fall in interest rates, an important issue raised by the borrower is the possibility of minimizing that risk by selecting the best refinancing option. In this paper, a mortgage refinancing model is presented,...