21. The Big Mac Index is an informal measure of purchasing power parity among world currencies. 22. If purchasing power parity held exactly, then the real exchange rate would always equal one. 23. Exchange-rate pass-through is also related to the law of one price and purchasing power parity . 24. Heston is considered a leading world expert on international economic comparisons and purchasing power parity . 25. An example is a country's purchasing power parity . 26. While Spain's economy itself is not doing great, purchasing power parity is generally going back up. 27. Arbitrage moves different currencies toward purchasing power parity . 28. The European Union has established a global gross domestic product by purchasing power parity ( PPP ). 29. :: Although the loaf of bread is a better indicator of the purchasing power parity as gold. 30. The league table using purchasing power parity is going to be different from merely exchange rates, which fluctuate.
