We analyze delinquent networks of adolescents in the United States. We develop a dynamic network formation model showing who the key player is, i.e. the criminal who once removed generates the highest possible reduction in aggregate crime level. We then structurally estimate our model using data...

We analyze delinquent networks of adolescents in the United States. We develop a theoretical model showing who the key player is, i.e. the criminal who once removed generates the highest possible reduction in aggregate crime level. We also show that key players are not necessary the most active...

To analyze if the spread of HIV is related to economic inequality we estimate multilevel models of the individual probability of HIV infection among young Malawian women. We find a positive association between HIV infection and inequality at both the neighborhood and district levels, but no...

The purpose of this paper is to analyse the impact of HIV/AIDS on fertility in Malawi. The future course of fertility will have an impact on both macroeconomic variables, such as GDP per capita, and various socioeconomic factors like mother-to-child-transmission of HIV, child mortality, the...