The Exchange Rate and Monetary Conditions in the Euro Area.- Using informat
ion from a variety of sources, this paper suggests that the exchange rate w
ill play an important role in the transmission of the impact of monetary po
licy on the real economy and inflation in the euro area. As a first approxi
mation it would be reasonable to assume that an increase in the real 90-day
interest rate of 100 basis points would have the same effect on demand two
years later as a 3.5 percent fall in the real euro exchange rate. This imp
lies that the euro area will tend to behave like a large open economy rathe
r than a closed economy and hence that it would be helpful in informing mon
etary policy to construct a Monetary Conditions Index (MCI). JEL no. E52, E
58.