Kontsumo kontratu elektronikoaren perfekzionamendua

[ES]Este trabajo analiza la formación y el perfeccionamiento de los contratos electrónicos celebrados entre consumidores y empresarios. Para ello, nuestro examen se centrará en la legislación española sobre esta materia, teniendo también presente tanto la regulación de la Unión Europea como la internacional. Así, analizaremos las fases que preceden a la perfección, el perfeccionamiento y la confirmación de la aceptación. Finalmente, tendrá mención especial el derecho de desistimiento.

Royalty Licensing

Published as an article in: Economics Letters, 2010, vol. 107, issue 2, pages 284-287.

The Impact of Firm Level Contracting on Wage Levels and Inequality: Spain 1995-2002

This paper provides microeconomic evidence on the variation over time of the firm-specific wage premium in Spain from 1995 to 2002, and its impact on wage inequality. We make use of two waves of a detailed linked employer-employee data set. In addition, a new data set with financial information on firms is used for 2002 to control as flexibly as possible for differences in the performance of firms (aggregated at industry level). To our knowledge, there is no microeconomic evidence on the dynamics of the firm-specific wage premium for Spain or for any other country with a similar institutional setting. Our results suggest that there is a clear tendency towards centralization in the collective bargaining process in Spain over this seven-year period, that the firm-level contract wage premium undergoes a substantial decrease, particularly for women, and finally that the "centralization" observed in the collective bargaining process has resulted in a slight decrease in wage inequality.

The effect of firm-level contracts on the structure of wages: evidence from matched employer-employee data

Revised: 2006-11

Testing the Forecasting Performance of Ibex 35 Option-implied Risk-neutral Densities

Published also as: Documento de Trabajo Banco de España 0504/2005.

Career Planning in Spain: Do temporary contracts delay marriage and motherhood?

The aim of this paper is to find an empirical connection between the impressive increase in the use of temporary contracts in Spain and the observed increase in age at marriage and maternity. Using a pool of the six available waves of individual information from the European Household Panel for Spain, we find that holding temporary contracts rather than permanent ones delays marriage for males, but not for females. Concerning maternity, the labor market situation of both members of the household affects entry into motherhood. In particular, if woman has a temporary contract rather than a permanent one, motherhoods is delayed independently of the husband's contract. As expected, postponement of maternity is not found for non-working women. These results give strong support to the career planning, motive to delay maternity in Spain, given that an unstable labor market situation of female workers is found to be the main deterrent to entry into motherhood.

Wage differentials between permanent and temporary workers: Firm and occupational segregation

Published as an article in: Moneda y Crédito (2004), 219, pp.: 43-68.

Un modelo de programación por metas para la elaboración del contrato-programa de un hospital público

[ES] Proponemos un modelo de programación por metas para la estimación del plan de producción (case-mix) que debe reflejarse en el Contrato–Programa que suscriben anualmente los Hospitales Públicos y la Administración. Las variables de decisión son los volúmenes de actividad de cada servicio médico del hospital y los atributos son los indicadores básicos que se manejan al elaborar el Contrato-Programa: fi nanciación, número de altas, estancia media y peso de complejidad. Para resolver nuestro modelo empleamos la herramienta SOLVER de la hoja de cálculo EXCEL. La utilización de esta herramienta permite simular varios escenarios de una manera ágil, lo que es de gran ayuda para el estudio y discusión de las cantidades a contratar entre el Hospital y la Administración. El artículo finaliza con una breve presentación de los resultados obtenidos al aplicar nuestro modelo a un hospital de tamaño medio (118 camas) del Servicio Vasco de Salud.

Dinámica de las Redes Virtuales de Fabricación Global en la Industria Aeronáutica

[ES] Las redes virtuales de fabricación global (RVFGs) están formadas por empresas independientes las cuales establecen entre sí relaciones de tipo horizontal y vertical, pudiendo incluso ser competidores, donde no es necesario mantener internamente grandes recursos fabriles sino gestionar y compartir eficientemente los recursos de la red.

Two-part tariff licensing mechanisms

Most of the patent licensing agreements that are observed include royalties, in particular per-unit or ad valorem royalties. This paper shows that in a differ entiated duopoly that competes á la Cournot the optimal contract for an internal patentee always includes a positive royalty. Moreover, we show that the patentee would prefer to use ad valorem royalties rather than per-unit royalties when goods are complements or when they are substitutes and the degree of differentiation is suffciently low. The reason is that by including an ad valorem royalty in the licensing contract the patentee can commit strategically to be more (less) aggressive when goods are complements (substitutes) since his licensing revenues become increasing with the price of output of his rival. As a result, licensing may hurt consumers although it always increases social welfare.