Securities repurchase agreements (REPOs) have become the Bundesbank's
most important tool for its ongoing money marker management and the co
ntrol of the monetary base. In the fall of 1988, the Bundesbank change
d the applied auction rule in order to prevent banks from submitting e
xaggerated bids. Focusing on the information content of a resulting RE
PO rate, this paper investigates how German money market rates react t
o auction results. Evidence is provided that the response of the money
market to a new REPO rate reflects the applied auction rule.