I have been reviewing literature on access to income in cities. I have found studies on labour income, subsidies, credit, remittances, informal economy and non-paid work. There are theoretical and empirical works on the impacts of all the latter on access to income and/or income distribution. However, looking at the link between access to income and crime, particularly drug trafficking, literature only refers to it as a social problem that is present in more unequal societies or poorer communities, or to negative impacts of criminal activity on income. For instance, there are accounts of impacts of incarceration on certain groups (i.e. African American men in the US). However, I haven´t been able to find accounts of the other sign of the correlation, that is to say, possibilities of social mobility being available thanks to illegal income associated to crime and drug trafficking. I would much appreciate suggestions of theoretical and empirical works trying to describe the weight of illegal income in poor households' income, as well as income distribution within cities or countries.