“…Our paper relates to the theoretical literature on the implementation of monetary policy in the euro area. A first strand of this literature concentrates on over-and underbidding incentives of commercial banks in the Eurosystem's main refinancing operation under different tender procedures (see, for example, Ewerhart, 2002;Nautz and Oechssler, 2003;Ayuso and Repullo, 2003;Bindseil, 2005;Ewerhart, Cassola, andValla, 2010, 2012 These contributions either abstract from the existence of an interbank market or assume that it is frictionless. In contrast to this, the second strand of the literature emphasizes the relevance of frictions in interbank markets.…”