Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper examines the degree of fragmentation in the Euro overnight unsecured money market during the period June 2008–August 2013 using interbank loans constructed from payments data. After controlling for cross-country differences in bank risk, we document several episodes of significant market fragmentation. While non-standard measures such as the provision of long-term liquidity were successful in reducing tensions, considerable signs of market fragmentation remained at the end of the sample period.