This project aims at (i) developing new methods for panel data models with heterogeneous marginal effects and discrete choice outcomes, controlling for unobserved common factors and nonlinear error components; (ii) applying the resulting methodologies to analyse alcohol-fuelled violence and drug-related harm in Australia. The proposed research lies at the forefront of current advances in econometrics and the outcomes will broaden/deepen Australia's knowledge base. Empirical outcomes will inform and evaluate evidence-based policy interventions for crime prevention, contributing to the Science and Research Priority area of Health. Outcomes will also influence policy making related to public transport and economic growth.