Is knowledge exchange and combination always useful for innovation?

Using the resource-based view, this paper aims to provide a better understanding of the effect of knowledge on innovation. With this general aim in mind, we relate knowledge’s nature (tacit vs. explicit) and the process (e.g., knowledge exchange and combination) to innovation. Using a sample of 105 marketing and 176 R&D managers from 105 innovative firms, we find a positive linear effect of tacit knowledge on innovation and a U-shaped relationship between knowledge exchange and combination and innovation. We also find an enhancing effect of tacit knowledge on the first part of the curvilinear relationship between knowledge exchange and combination and innovation.: R&D, patents, knowledge, inventions

The effect of oil price on industrial production and on stock returns

This paper analyzes the relationship between oil price shocks and the industrial production and between oil price shocks and the stock returns. The objective is to study which relationship is stronger or which variables reacts more rapidly to changes in oil price. We develop a Markov switching model assuming that there exits a latent variable (the state of the economy) which determines the mean of industrial production and the volatility of stock returns. The results show that raises in oil price affects in a negative and statistically significant way to stock returns and to industrial production, but the effect on stock returns is stronger than on industrial production.oil price, Markov switching models.

Term Structure and the Estimated Monetary Policy Rule in the Eurozone

Published as an article in: Spanish Economic Review, 2008, vol. 10, issue 4, pages 251-277.NKM model, term structure, policy rule, indirect inference

The New Keynesian Monetary Model: Does it Show the Comovement Between Output and Inflation in the U.S.?

Published as article in: Journal of Economic Dynamics and Control (2008), 32(May), pp. 1466-1488.comovement, VAR forecast errors, optimal policy, NKM model

How does knowledge matter patenting inventions?

While there is robust empirical evidence that firm patenting is positively associated with various measures of overall performance and competitiveness, less is known about what determines the patenting choice. For this reason, this paper examines whether R&D expenditure and the type of knowledge used in the invention determine the decision to patent. With this aim, we use a sample of firms and the European Patent Office to analyse how the combination of R&D expenditure and knowledge codifiability, observability and simplicity influences the patent decision. Our results contribute to the literature and assist R&D managers by showing that both R&D and codified knowledge have a positive impact on the number of inventions patented by a firm, while observable knowledge has a negative impact on patents. Furthermore, we find that the effect of R&D expenditure on the propensity to patent inventions is negatively moderated by knowledge observability and simplicity.: R&D, patents, knowledge, invent

Multiobjective algorithms to optimize broadcasting parameters in mobile Ad-hoc networks

Congress on Evolutionary Computation. Singapore, 25-28 September 2007A mobile adhoc network (MANETs) is a self-configuring network of mobile routers (and associated hosts). The routers tend to move randomly and organize themselves arbitrarily; thus, the network's wireless topology may change fast and unpredictably. Nowadays, these networks are having a great influence due to the fact that they can create networks without a specific infrastructure. In MANETs message broadcasting is critical to network existence and organization. The broadcasting strategy in MANETs can be optimized by defining a multiobjective problem whose inputs are the broadcasting algorithm's parameters and whose objectives are: reaching as many stations as possible, minimizing the network utilization, and reducing the makespan. The network can be simulated to obtain the expected response to a given set of parameters. In this paper, we face this multiobjective problem with two algorithms: Multiobjective Particle Swarm Optimization and ESN (Evolution Strategy with NSGAII). Both algorithms are able to find an accurate approximation to the Pareto optimal front that is the solution of the problem. ESN improves the results of MOPSO in terms of the set coverage and hypervolume metrics used for comparison

La evaluación de programas en el marco de la educación de calidad

El artículo presenta una concepción de la evaluación caracterizada como integral, Integrada e Integradora, orientada por dos principios básicos: un enfoque radicalmente pedagógico, educativo, y un planteamiento unitario, armónico y coherente, tanto entre la evaluación de los diferentes objetos como entre ésta y el conjunto de elementos que integran los procesos educativos de calidad.____________________________________ This article shows a conception of the evaluation characterised as Integral, integrated and integrator, guided for two basic principles: a radical, pedagogical and educational approach and a harmonic, coherent and unitary approach, of the evaluation of the different objects and the elements that take part in the quality educational processes

Linux Terminal Server Project en la escuela

Este artículo contiene información sobre el proyecto LTSP (Linux Terminal Server Project) que permite aprovechar los ordenadores más antiguos para que ejecuten los programas más modernos. Gracias a este proyecto, los centros educativos podrán aumentar, sin costes, el número de aulas de informática, mejorando la ratio aulas TIC alumnado, lo que contribuirá a intensificar el uso de las TIC en educación

Some aesthetic keys of Jose Maria Parreño´s poetry: anthology and didactics

Este artículo pretende situar la obra poética de José María Parreño en las coordenadas generacionales y estéticas del último cuarto del siglo XX. Este poeta ha sido ubicado por la crítica en la Poesía de la Experiencia, corriente dominante en las dos últimas décadas del siglo. Sin contrariar esa idea general que a grandes rasgos compartimos, conviene señalar qué le une y qué le separa de esta corriente a fin de situar su singularidad dentro de esa estética y dentro de los poetas que conforman su generación. Finalmente añadimos una breve antología de su obra poética que puede resultar significativa.This article tries to place Jose Maria Parreño's poetical work in the generational and aesthetic coordinates of the last years of the 20th century. Critics have linked this poet with the Poetry of Experience, mainstream in the last two decades of the century. Without contradicting this general idea that we share in its outlines, we want to indicate what joins and what separates him from these aesthetics in order to place his singularity within these aesthetics and among the poets who are part of this generation. Finally we add an anthology work that can be significant of his poetical work.peerReviewe