The difference between nominal and real interest rates is that Group of answer choices nominal interest rates can fluctuate, while real interest rates always remain fixed. nominal interest rates are measured in terms of a country's output, while real interest rates are measured in monetary terms. real interest rates can fluctuate, while nominal interest rates always remain fixed. real interest rates are the same in every country, while nominal interest rates are different for every country. nominal interest rates are measured in monetary terms, while real interest rates are measured in terms of a country's output.