At the beginning of 2004, the Eurosystem implemented several modifications of its operational framework and liquidity management aiming at enhancing market efficiency. The purpose of this article is to study the effects of theses changes in the spread between the Eonia and the minimum bid rate....

In this paper the probability of informed trading (PIN) model developed by Easley and O'Hara (1992) is applied to analyze the role and impact of heterogeneities in euro overnight unsecured market. The empirical assessment of the functioning of this market is based on the PIN which measures the...