Hilke Brockmann is a sociologist and demographer by training and a professor of sociology at Jacobs University. Her research deals with the causes and consequences of population aging and of subjective well-being (SWB), often equated with happiness. Happiness has recently emerged as a prominent topic in politics as well as in economics, political science, and sociology. During her stay at CES she will be working on four quantitative projects which all deal with issues of subjective well-being. Three of her projects will look into the effects of demographic change in European societies and probably on subjective well-being in the US (women’s and mother's economic empowerment, migration, prolongation of life). The fourth project focuses on the effects of happiness on tax compliance.