BEIJING -- The card game guandan has gained an avid following in China, including in the finance industry, where it has become such a valuable social lubricant that even foreign investors are keen to learn how to play.
Team-based card game finds 140m fans, from financiers to students

A recent guandan tournament in a Beijing mall drew 80 players. (Photo by Kentaro Shiozaki)
BEIJING -- The card game guandan has gained an avid following in China, including in the finance industry, where it has become such a valuable social lubricant that even foreign investors are keen to learn how to play.