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

Las deficiencias que registran los diferentes países de América Latina en los indicadores relacionados con el rendimiento escolar y la calidad educativa han sido un tema recurrente en la agenda política de los gobiernos de la región durante las últimas décadas. Diferentes estudios sugieren...

El comercio internacional y los flujos de inversión se han incrementado en las últimas déca-das más rápidamente que el producto interno bruto mundial. Este rápido crecimiento de las transacciones internacionales se conoce comúnmente como globalización. Este fenómeno puede ser visto como...

Abstract: This paper asks whether school based management may help reducing risky sexual behavior of teenagers. For this purpose we use student level data from Bogota to identify students from Concession School (CS), who are enrolled in public education system with a more school management...

Abstract: This paper explores the correlation between school factors and the differentiated results on sexual behavior between boys and girls in Bogota. A school stratified propensity score matching was performed to match each boy of the sample with the most similar girls in individual,...

We study competition in two sided markets with common network externality rather than with the standard inter-group e¤ects. This type of externality occurs when both groups bene…t, possibly with di¤erent intensities, from an increase in the size of one group and from a decrease in the size of...

We develop a model in which two insurers and two health care providers compete for a fixed mass of policyholders. Insurers compete in premium and offer coverage against financial consequences of health risk. They have the possibility to sign agreements with providers to establish a health care...

This paper offers a productivity growth estimate for electric energy commercialization firms in Colombia, using a non-parametric Malmquist bootstrap methodology. The estimation and methodology serve two main purposes. First, in Colombia commercialization firms are subject to a price-cap...

Colombia introduced a market-determined Nominal Exchange Rate (NER) with the US Dollar in 1991, after more than 20 years of controlled and multiple exchange rates. The first nine years the NER was set by an exchange rate band system, since 1999 the exchange rate is determined in a dirty float"...