The Big Mac Index is a novel measure of

A) GDP.
B) purchasing power parity.
C) per capita GNI.
D) economic growth.
E) international trade surplus.

Purchasing Power Parity

An economic theory that compares different countries' currencies through a "basket of goods" approach to assess their purchasing power equivalency.

Big Mac Index

An informal measure of purchasing power parity between two currencies, calculated by comparing the price of a McDonald's Big Mac burger in different countries.