The PRELAB network includes academic and development organisations, all with a major focus on informality and development, to: 1) train researchers in methodologies to measure informality in a global perspective; 2) conceptualise ways to apply qualitative and quantitative methodologies that were successfully used in Eastern Europe and Central Asia to our target countries in the Asia Pacific region; 3) produce a consistent narrative on how to measure and tackle informality in emerging economies; and 4) engage with policymakers and business actors, in addition to the scientific community, to identify ways to apply these approaches to development practice worldwide.