Lasse Tarkiainen works as a postdoc researcher at the Institute of Urban and Regional Studies. He obtained his PhD in Sociology/Demography from the University of Helsinki in 2016. His previous research has concentrated on socioeconomic and spatial inequalities in health and demographic outcomes such as mortality. For the current postdoc position his interests lie in identifying the effects of neighbourhood characteristics on the health risks and socioeconomic outcomes of the residents. Teasing out the possible causal component in the association between neighbourhood characteristics and individual outcomes is known to be difficult due to complex selective processes in which individuals and families end up living in specific neighbourhoods. However, by means of high-quality Finnish register data and quasi-experimental research designs, it may be possible to account for these processes behind the observed associations between neighbourhood characteristics and individual outcomes.