The Chinese policy that limits most families to having one child has had psychological fallout for the children born after it was instituted in 1979, economists report in the journal Science.

The researchers asked two groups of people — born just before and just after the policy was put into place — to play a set of games using real money. …

Players born after the one-child policy was instituted were less likely to pass money along than the older participants.

The researchers concluded that the “one-child-policy” players were less trusting, less trustworthy, less competitive and more risk-averse than the older ones.