We compare the treatment of Colombia in large cross-country conflict datasets with the information of the detailed micro dataset of Restrepo, Spagat and Vargas (2003). We find a general tendency of the big datasets to underestimate the magnitude of the Colombian conflict and to mischaracterize...

The paper studies the dynamics of production of knowledge in an emergent scientific field, Nanoscience. It suggests that scientific knowledge advances by proliferation, or the turbulent entry of new sub-fields, each generating opportunities for further entries at each time. It suggests a new...

The demand for foods in central Chile is increasing and arable land is expanding rapidly onto floodplain soils, which are being cleared for maize cultivation. After harvest, a significant amount of residual nitrogen (N) may be still present in the soil in autumn–winter, when a high risk of...

We present a detailed, high-frequency data set on the civil con?ict in Colombia during the period 1988–2002. We brie?y introduce the Colombian case and the methodological issues that hinder data collection in civil wars, before presenting the pattern over time of con?ict actions and intensity...

This paper describes the pattern of reductions in mortality across Brazilian municipalities between 1970 and 2000, and analyzes its causes and consequences. It shows that, as in the international context, the relationship between income and life expectancy has shifted consistently in the recent...

This paper critically reviews a vast array of literature on the costs of crime and common violence. Using a simple economic model of crime as a theoretical benchmark, we conceptually discuss the estimates available and their potential use as inputs for public policy. We present current...

This paper describes the pattern of reductions in mortality across Brazilian municipalities between 1970 and 2000, and analyzes its causes and consequences. It shows that, as in the international context, the relationship between income and life expectancy has shifted consistently in the recent...