What motivates kidnapping decisions by rebel groups? This paper studies news coverage of a proposed prisoner exchange program (the Acuerdo Humanitario; AH) in connection with FARC (Revolutionary Armed Forces of Colombia) kidnappings in the early 2000s. We propose that AH News nourished the...

How does violence affect social capital? I argue that its impact depends on two factors: i) the ability to identify the perpetrating group, and ii) the intensity of the violence. These factors help to reconcile the seemingly contradictory effects of violence on social capital presented in the...

In the early 2000s, the Colombian government aired messages during games of the national football team, urging FARC rebels to demobilize. We first study the strategy's effectiveness, leveraging game dates, kick-off times, and spatial-temporal variation in rain-induced signal strength in a...

How do civil war dynamics affect state-building decisions in the aftermath of conflict? This paper argues that, in the post-conflict period, the state focuses its efforts to build state capacity on areas in which state power has been eroded during wartime, with the goal of avoiding future...

This paper continues my research program on violence and terrorism started 15 years ago. It presents in the first part through empirical exercises, the suitability of The Beveridge and Nelson decomposition of economic time series for pointing out the occurrence of terrorist attacks. It presents...

We estimate a model to account for homicide cycles in Colombia, 1950-1999. The variables that together account for about eighty percent of the variation in murder cycles are the years of Colombia(s La Violencia period, the years of collusion between the two establishment parties (the National...

Internal conflicts entail large asset losses for certain segments in the civilian population. Asset losses may compromise the future welfare of households, thus leaving a legacy of structural poverty that is difficult to overcome. The purpose of this article is to analyze how asset losses occur...

I apply the Beveridge-Nelson business cycle decomposition method to the time series of murder in the United States (1900-2004). Separating out “permanent” from “cyclical” murder, I hypothesize that the cyclical part coincides with documented waves of organized crime, internal tensions,...

En Colombia la democracia ha sido el mecanismo normal para acceder al poder. Sin embargo, desde los albores de la república los enfrentamientos bélicos partidistas y los cambios constitucionales fueron una constante. Este trabajo muestra cómo en el siglo XIX en Colombia, los cambios...

This paper belongs to my research program on violence and terrorism started in 1993, as a consequence of the growing concern regarding the increase in Colombian violence, and especially for its escalation during the 1990’s. After 14 years of research, particularly after developing a model of...