On the Engage Education practice exam a question is "Explain how inflation could reduce the efficiency with which prices allocate resources".
Firstly, can they even ask this question on the real exam? The study design says only knowledge is needed of the 'role of relative prices in the allocation of resources'. If so, discard the rest of this post.
But anyway, the model answer says "in the presence of inflation prices or not only affected by supply + demand, but also by changes in the general price level. Inflation creates 'static' in the price system, obscuring information transmitted by prices and redicing the efficiency of the market system."
My answer talked about how inflation causes people to invest in items that are protected against inflation, such as gold, and away from the production of goods and services. Thus as a result of inflation, resources aren't allocated efficiently because price signals caused by demand and also inflation are ignored to protect against a loss of purchasing power.... Is that ok?