Using the decomposition procedure propossed by Oaxaca (1973) applied to data extracted from the National Household Survey (1984 – 1999), this document presents a new estimation of wage discrimination by gender. An male-possitive wage differential is detected which is not explained by...

On June 2000 the Colombian National Department of Statistics (DANE) adopted a new definition to measure unemployment following standards suggested by the International Labour Organisation (ILO). The change of definition implied a reduction of the unemployment rate of about two percentual points....

Despite of important theoretical and practical criticism, estimations of the Natural Rate of Unemployment for Colombia have been suggested as a base for possible active labor market decitions. This document contributes to this discussion with surveys on the subject in two different but...

Working on data of 1241 incumbent firms of the Colombian manufacturing industry this paper tests the hypothesis proposed in models relating turnover and efficiency wage theory. We find evidence of a substantial number of firms paying wages above the industry average and its effect on turn over...

Este artículo muestra la relación existente entre las políticas de Ciencia y Tecnología (CyT) y los resultados que éstas han producido a través del gasto en CyT, como indicador de insumo, y de las publicaciones, como indicador producto. El documento describe el proceso histórico que ha...

We examine for the first time the association of different measures of ownership and control, and separation ratios with firm’s value and performance for 108 non-financial firms that traded their stock during the period 1998 to 2002. We found that large blockholders exert a positive influence...

In this paper we overcome a lacks of Black-Scholes model, i.e. the infinite propagation velocity, the infinitely large asset prices etc. The proposed model is based on the telegraph process with jumps. The option price formula is derived.

En este trabajo se examinan los más importantes estudios realizados sobre la pobreza, el empleo y la distribución del ingreso en zonas rurales de Colombia, con especial referencia a la década de 1990. Aunque hay cierta dificultad para identificar los "hechos estilizados" que caracterizan la...

In this paper we introduce a financial market model based on continuous time random motions with alternating constant velocities and with jumps occurring when the velocity switches. If jump directions are in the certain correspondence with the velocity directions of the underlying random motion...

This work shows if firms use debt strategically in order to stop entry of potential rivals in their industry. Using Generalized Method of Moments estimation (GMM) we evaluate the effect of assets, market share and size as proxies for market revenue, and the entry barriers over indebtedness...