Abstract: This article presents a dynamic growth model with energy as an input in the production function. The available stock of energy resources is ordered by a quality parameter based on energy accounting: the “Energy Return on Energy Invested” (EROI). In our knowledge this is the first paper where EROI fits in a neoclassical growth…
ABSTRACT In this paper, we propose a nonparametric statistical tool to identify the most relevant lag in the model description of a time series. It is also shown that it can be used for model identification. The statistic is based on the number of runs, when the time series is symbolized depending on the empirical…
ABSTRACT The purpose of this paper is to propose a newly developed non-parametric test for linear and nonlinear causality based on permutation entropy and to show its usefulness in analyzing the potential causal relationship between trading volume and security prices. Most of the empirical applications and tests for causality rely on using Granger causality based…
ABSTRACT This paper explores the link between specialization across goods and specialization within goods along the quality dimension. It develops a tractable many-country, many-industry Ricar- dian model with an integer number of heterogeneous firms producing each good, under a generic assumption about the distributions of firm e ciencies. In equilibrium, each country exports a range…
ABSTRACT The aim of this article is to analyse the strategies employed by the Rothschilds up to 1940 to gain control and limit competition in the international non-ferrous metals markets. It examines how they opted for inelastic demand products of highly concentrated supply which lent themselves to market control (mercury, nickel, lead, and copper and…
nCon frecuencia se asegura que la gestión pública de los centros sanitarios es ineficiente. A partir de estapremisa, no contrastada, se argumenta la necesidad de introducir elementos privatizadores en la gestión.En este artículo se revisa la evidencia disponible, a escala nacional e internacional, acerca de la aplica-ción de mecanismos de gestión privada en sistemas predominantemente…
ABSTRACT Background In January 2011 Spain modified clean air legislation in force since 2006, removing all existing exceptions applicable to hospitality venues. Although this legal reform was backed by all political parties with parliamentary representation, the government’s initiative was contested by the tobacco industry and its allies in the hospitality industry. One of the most…
ABSTRACT The possibility of weighting QALYs differently for different groups of patients has been a source of debate. Most recently, this debate has been extended to the relative value of QALYs at the end of life (EoL). The objective of this study is to provide evidence of societal preferences in relation to this topic. Three…
Purpose: To contribute to the ongoing discussion on the choice of a preference-based health-related quality of life (HRQoL) instrument to be used in cost-effectiveness analysis by studying and comparing the validity, sensitivity and relative efficiency of 15-D and EuroQol 5D 5L (EQ-5D-5L) in a Spanish Parkinson’s disease (PD) population sample. Methods: One hundred and thirty…
ABSTRACT The Spanish business code allowed firms two types of organizational flexibility in the late 19th and early 20th century. Firms enjoyed great leeway in adapting rules to their needs. The corporation was especially flexible in this way. Spanish law also allowed firms to in effect crea- te their own legal form. Until 1920, firms…
