Matthew Jaremski, David Wheelock, 15 August 2019

In response to the Global Crisis a decade ago, banks have tried to make themselves more resilient to shocks transmitted through interbank connections. But the opacity of interbank networks makes it difficult to measure the effectiveness of such policies. This column uses evidence from 20th century America to show how the founding of the Federal Reserve and the Great Depression affected interbank networks and lending practices. The creation of the Fed reduced network concentration and therefore contagion risk, but the system remained vulnerable to local panics.

Daron Acemoğlu, Ufuk Akcigit, William Kerr, 20 January 2017

Innovation is typically seen as a cumulative process, with new technologies building on existing knowledge - but our knowledge of how progress in a specific area is influenced by knowledge in other, ‘upstream’ areas is limited. Using US patent data, this column identifies a stable ‘innovation network’ that serves as a conduit for cumulative knowledge development. Technological advances in one field can advance progress in multiple neighbouring fields, but will have a stronger influence on more closely related areas.

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