A popular view about social security, dating back to its early days of inception, is that it is a means for young, unemployed workers to 'purchase' jobs from older, employed workers. The question we ask is: Can social security, by encouraging retirement and hence creating job vacancies for the...

We study the association between infectious disease prevalence and income inequality. We hypothesize that random social mixing in an income-unequal society brings into contact a) susceptible and infected poor and b) the infected-poor and the susceptible-rich, raising infectious disease...