Shortcomings in regulation and supervision also played their part. In the end, the crisis appears to have been the outcome of the interplay of all of these factors, although  BIS central bankers’ speeches  1  views may differ on the relevance of every factor and its contribution to the outbreak and ensuing virulence of the crisis.
We are complementing this by raising interest rates in the interbank market and on repo instruments. Of course open market exchange rates are difficult to control and no central bank can guarantee to move the exchange rate in the direction it wants.