Modern economies will change forever after the coronavirus pandemic passes if some radical thinkers get their way.

Governments have already cast aside dogmas at least temporarily — such as Germany’s "black zero” balanced budgets — to protect companies and jobs in the deepest peacetime recession in almost a century.

Yet moves such as governments mailing checks to citizens and the U.K. administration borrowing direct from the Bank of England also offer a glimpse of different ways of running things in the longer-term.