# Equation of exchange and inflation target

The inflation target is $$2$$% and the equation of exchange states $$MV=PQ$$. Is the idea that we want to have greater money supply growth then real growth in general?

It is rather other way around. We want to target about $$2\%$$ inflation and to do so money supply should expand faster than real growth. Also, the $$2%$$ target is not commonly interpreted as a target that has to be kept all the time.
For example, as explained in this Brookings blog many central bankers advocate targeting the $$2\%$$ over business cycle. During recessions it might be prudent to have more 'loose' monetary policy and during expansions more 'tight' one.
Thus to sum up, while in order to target $$2\%$$ inflation often central banks try to expand money supply faster than the real growth, it is not always possible to do so nor it is always desirable to expand money supply so fast across business cycle.