The research of the National Minimum Wage Research Initiative is divided into four Work Packages. Work Package 1 provides theoretical and case study evidence. Work Package 2 offers descriptive statistics on the nature of the labour market and statistical modelling of the potential impact of a national minimum wage. Work Package 3 offers research related to policy approaches to national minimum wages. Work Packages 4 contains two synthesis reports. Finally, there is an external Working Paper Series in which the research initiative publishes relevant and related material submitted by other researchers.