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Video Assignment Purchasing Power Parity (PPP) To read more about PPP click on: PPP McDonald's China could pass US as top economy this year. Title: Commanding Heights: The New Rules of the Game. Chapter 8 Publisher: PBS Authors: Yergin & Stanislaw Commanding Heights' Videos 1. What is Purchasing Power Parity? Under what conditions does PPP exist? 2. Explain how technology has helped or hindered purchasing power parity.