Must-Read: Cardiff Garcia: Alphachat: Alan Taylor on financialisation, business cycles, and crises: “With collaborators Oscar Jorda and Moritz Schularick, the authors summarise their decades-long work on financialisation, which we discussed with Alan…

…From the paper:

Our previous research uncovered a key stylized fact of modern macroeconomic history: the “financial hockey stick.” The ratio of aggregate private credit to income in advanced economies has surged to unprecedented levels over the second half of the 20th century. The goal of this paper is to show that with this “great leveraging” key business cycle moments have become increasingly correlated with financial variables. Our long-run data show that business cycles in high-debt economies may not be especially volatile, but are more negatively skewed. Higher debt goes hand in hand with worse tail events.

A great deal of modern macroeconomic thought has relied on the small sample of US post-WW2 experience to formulate, calibrate, and test models of the business cycle, to calculate the welfare costs of fluctuations, and to analyze the benefits of stabilization policies. Yet the historical macroeconomic cross country experience is richer. An important contribution of this paper is to introduce a new comprehensive macro-financial historical database covering 17 advanced economies over the last 150 years. This considerable data collection effort that has occupied the better part of a decade, and involved a small army of research assistants.