This is central to the theory that modern financial markets (and certainly capitalism itself) originated in the wake of the labor market reorganization and mass

This is central to the theory that modern financial markets (and certainly capitalism itself) originated in the wake of the labor market reorganization and mass migration symptomatic of the black death. The plauge had a multitude of effects on Europe, but chief among them was the severe contraction of the labor markets and the subsequent restructuring of of local and regional economies. Of course, events like the reformation and the thirty years war are just as influential, but relate less directly to the political economy.