LyrArc Article Gist
The Economst cites an IMF June 2012 paper by Arcand, Berkes and Panizza that shows private borrowing and size of bank balance sheets once it reaches 100% of GDP begins to slow growth. A second paper by Cecchei and Enisse Kharroubi at the Bank for International Settlements confirms this showing that at low levels private borrowing and expansion of bank balance sheets increases economc growth, but at high levels exceeding 100% of GDP a large financial system actually hurts economic growth. Andy Haldane of the Bank of England points out the fact that for the century to 1970 bank assets increased by an average of 0.6% a year faster than GDP in 14 large economies, but increased much faster after this with ratio of assets to GDP increasing by about 3 percentage points a year. Bank assets increased from 50% of GDP in the 1960's to about 200% of GDP by 2007, reaching 500% of GDP in Britain, 800% of GDP in Switzerland, and 126% in the U.S. The increase in world trade accentuated this period with trade increasing from 22% of global GDP to 33% in the period 1996-2008, and banking following this trend across borders to developing countries. At the same time excesses caused an imbalance with hyper growth in bank balance sheets through taking on more leverage and banking risks. The Economist sees this process going back in reverse as bank balance sheets shrink in the face of regulation and efforts for financial stability following the 2008 global financial crisis.