The HAIRCUT Index | PKU Masterclass

A $1.50 haircut may sound like a small detail, but it can reveal a lot about the global economy.

Wu Changqi (武常岐), Professor at Peking University's Guanghua School of Management, turns a haircut at PKU into a lesson on purchasing power parity.

Speaking to American university students participating in the 2026 China Deep Dive program, Professor Wu explains why services tend to be cheaper in developing countries and how purchasing power affects the way we compare GDP across economies.

#2026ChinaDeepDive #PKUMasterclass

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