The curry pork chop index shows that the yen is seriously undervalued, with its creator stating that it is more relevant than the Big Mac index.

As the influence of authorities' interventions in the foreign exchange market fades, a senior strategist at BNY Mellon has utilized the price of a Japanese fast food staple to accurately gauge the weakness of the yen. Geoff Yu has created the Curry Pork Cutlet Index as an alternative measure to The Economists Big Mac Index. He believes that, compared to the international price of a Big Mac, the price comparison of curry pork cutlet meals better reflects how the depreciation of the yen affects the Japanese public.