This paper contributes to the growing literature that analyses the Spanish publishing performance in Economics throughout the 1990s. Several bibliometric indicators are used in order to provide Spanish rankings (of both institutions and individual authors) based on Econlit journals. Further, lists of the ten most influential authors and articles over that period, in terms of citations, are reported.

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Resumen: La carrera investigadora puede tener un efecto relevante sobre las opciones de éxito profesional de los investigadores. Dicho efecto, conocido como ventaja acumulativa, contribuiría a agudizar la desigual distribución de la productividad y el impacto entre los investigadores. Este trabajo se centra en determinar la presencia de ventaja acumulativa en una muestra de 174 investigadores españoles de cuatro áreas de conocimiento (Física, Química, Biología y Bioquímica). Para contrastar el efecto de la carrera investigadora se especifi ca un modelo multiecuacional que incluye variables sobre la formación pre y posdoctoral así como con los departamentos donde trabajan los investigadores. El modelo incorpora un conjunto de hipótesis basadas en la revisión de la literatura. La estimación se realiza mediante Path Analysis. Asimismo, ha sido necesario desarrollar un método de estimación de la calidad de los departamentos en una escala única válida para cualquier país y disciplina. Los principales resultados confi rman la presencia de ventaja acumulativa siendo la productividad predoctoral el principal determinante de la productividad de los 10 años posteriores a la obtención del grado de doctor. Finalmente, se observa un sesgo tanto en productividad como en impacto a favor de los hombres. Palabras clave: productividad científi ca, carrera investigadora, ventaja acumulativa, path analysis.

The relationship between physicians' research activity and professional performance was examined. We have taken into account their motivation, job satisfaction and the way that research groups are organized. Previous studies have shown that physicians' research activity has a positive effect on clinical practice. They also show that motivation and job satisfaction are positively related with research activity. A group of 278 physicians from hospitals in Madrid were surveyed. A structural model was estimated using SEM techniques. The results indicate both job satisfaction (0.620) and motivation (0.236) are important factors. These results demonstrate the strategic value of both human resources policies and research management practices within hospitals.

Abstract. This paper contributes to the growing literature that analyses the Spanish publishing performance in Economics throughout the 1990s. Several bibliometric indicators are used in order to provide Spanish rankings (of both institutions and individual authors) based on Econlit journals. Further, lists of the ten most influential authors and articles over that period, in terms of citations, are reported. JEL Classification: A110, A140