Raising the bar (25)

This editorial summarises the papers in issue 18(3) (2023). The first article examines the balloon effect, the shift of production of illicit crops to other areas upon regulatory enforcement. The second paper tests for the existence of innovation spillover effects on firm survival. The third paper analyses the impact of lockdown policy measures on the daily use of mobile phone broadband through a quasi-experimental econometric model with 15 different treatment dummies. The fourth paper examines to what extent the economic effect of lockdowns in different regions and countries interact with each other and the extent to which policy coordination of these interactions influences the overall economic effect. The fifth and sixth papers develop spatial extensions of the autoregressive conditional heteroskedasticity model (ARCH) to explain US house price returns.