For over a decade, the ERM survived in defiance of gloomy predictions
that its fate would be similar to that of 'the Snake' in the 1970s, wh
ich disintegrated a few years after the collapse of Bretton Woods. It
survived even the abolition of exchange controls in 1990. But finally
it broke down in the face of a series of large shocks-a fluctuating do
llar, German reunification, and the debate over the Maastricht Treaty.
This paper uses stochastic simulation of the Liverpool World Model to
examine the weaknesses in the ERM and compares its stochastic perform
ance with that of floating exchange rates. It argues that European mon
etary policy should return to domestic monetary targeting within float
ing exchange rates. It finds that cooperation in European monetary pol
icy is delivered with least stochastic disturbance within such a regim
e.