(p. 11) Some economic risks are worth taking, and crises are an inevitable concomitant of risk. Crises, like firm failures, can be seen as a manifestation of the Schumpeterian process of creative destruction. The role for economic analysis is to ensure that the creation dominates and that the destruction is not too costly.
Eichengreen, Barry. Capital Flows and Crises. Cambridge, MA: The MIT Press, 2003.