I think computerization, more generally, is a very powerful factor. More electronic transactions, less cash. More surveillance. More cameras. Traceable goods/t

I think computerization, more generally, is a very powerful factor. More electronic transactions, less cash. More surveillance. More cameras. Traceable goods/tracked shipments. Better crime data analysis and police patrol routing. Consumer purchases tending toward electronics that are ever-cheaper and more-powerful. More digital goods, less demand for physical goods. Better media distribution. etc. It may also explain the outliers to the global crime trends: places where computerization of the society (or subset of society) has lagged.