The paper deals with maritime risk, which we consider important, no doubt, for ship-owners acting in volatile markets. Traditionally, risk is measured by "standard deviation". Other risk measures like "excess kurtosis", "excess skewness", "long-term dependence" and the "catastrophe propensity"...

In this paper we show the results achieved by integrating Six Sigma, discrete simulation techniques and multi-criteria techniques for improving a beauty service that desires to obtain the best compromise solution between incomes, costs, use of resources and customer satisfaction. DMAIC...

We describe an efficient method for estimating enterprise input-output tables for cases when only information on marginal totals is available. In order to estimate the production structure of enterprises, we utilize engineering knowledge to construct a qualitative prior containing 1 wherever an...

The growth or decline of a region depends on its power to pull and retain both business and the right blend of people to run them. This pulling power depends on what we call the Image of the region, a variable which expresses the region's present state of development and future prospects and may...

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...

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...