PT - JOURNAL ARTICLE AU - Hiba N Kouser AU - Ruby Barnard-Mayers AU - Eleanor Murray TI - Complex systems models for causal inference in social epidemiology AID - 10.1136/jech-2019-213052 DP - 2020 Nov 10 TA - Journal of Epidemiology and Community Health PG - jech-2019-213052 4099 - http://jech.bmj.com/content/early/2020/12/09/jech-2019-213052.short 4100 - http://jech.bmj.com/content/early/2020/12/09/jech-2019-213052.full AB - Systems models, which by design aim to capture multi-level complexity, are a natural choice of tool for bridging the divide between social epidemiology and causal inference. In this commentary, we discuss the potential uses of complex systems models for improving our understanding of quantitative causal effects in social epidemiology. To put systems models in context, we will describe how this approach could be used to optimise the distribution of COVID-19 response resources to minimise social inequalities during and after the pandemic.