While we cannot say for certain that deleveraging will occur today, we do know empirically that deleveraging has followed nearly every major financial crisis in the past half-century. We find 45 episodes of deleveraging since the Great Depression in which the ratio of total debt relative to GDP declined, and 32 of them followed a financial crisis. These include some instances in which deleveraging occurred only in the public sector; others in which the private sector deleveraged; and some in which both the public and private sectors deleveraged simultaneously (See Appendix B: Historical episodes of deleveraging). The historic episodes of deleveraging fit into one of four archetypes: 1) austerity (or “belt-tightening”), in which credit growth
lags behind GDP growth for many years; 2) massive defaults; 3) high inflation; or 4) growing out of debt through very rapid real GDP growth caused by a war effort, a “peace dividend” following war, or an oil boom.