The paper proposes an alternative way to observe and extract the multiple matches games of sports, i.e.: tennis tournament in the Athlete's Historical Relative Performance Index and its representation as graph. The finding of the small world topology is elaborated along with further statistical...

We study the evolution of interest about climate change between different actors of the population, and how the interest of those actors affect one another. We first document the evolution individually, and then provide a model of cross influences between them, that we then estimate with a VAR....

The drug trade as a global and national phenomenon -- Analytic perspectives for explaining the drug trade -- Conceptualizing consumption : drug use and drug users -- The production of psychoactive substances -- Distribution : linking producers and consumers -- Money laundering : money makes the...