What is the relationship between inflation and imports/exports?
As requested in comments:

It is a matter of which other factors are being held constant. If the relative-inflation-adjusted exchange rate (i.e. the real rate) stays constant, there may be no supply or demand effect on export and import volumes. 

However exchange rates do not exactly follow relative inflation in different economies; other factors such as interest rates and investment returns, balance of payments differences, and sentiment can also have an effect.