by Nuno Cassola and Claudio Morana; CeRP WP n. 102/10
Abstract
The evolution of the spreads between unsecured money market rates of various maturities and central banks’ key policy rates has been subject to considerable debate and controversy in relation to the worldwide financial market turbulence that started in August 2007. Our contribution to the ongoing debate on the dynamics of money market spreads is empirical and methodological, motivated by the “shocking” evidence of non-stationary behaviour of money market spreads. In fact, in our view, empirical work assessing the effectiveness of central bank policies has largely overlooked the complexity of the market environment and its implications for the statistical properties of the data. Thus, our main goal is to carefully document both the economic and statistical “fingerprint” of money market turbulence, in the framework of a new econometric framework, carefully accounting for the persistence properties of the data.
Published: November 2010