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Chilean Study Finds Money Transfers Trigger Jealousy in Couples

5/3/2026

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Summary

Story summary

Ana María Fernández and colleagues in Chile studied romantic jealousy with 79 heterosexual couples using an economic game.
Both sexes showed jealousy when a partner gave 75 percent of money to an opposite-sex rival.
Jealousy was low when a partner received money from the rival.
Women felt jealousy whenever a man gave money to a woman.
The authors said the lab setting, modest stakes, and a young, heterosexual sample limit generalization.

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Story summary

Ana María Fernández and colleagues in Chile studied romantic jealousy with 79 heterosexual couples using an economic game.
Both sexes showed jealousy when a partner gave 75 percent of money to an opposite-sex rival.
Jealousy was low when a partner received money from the rival.
Women felt jealousy whenever a man gave money to a woman.
The authors said the lab setting, modest stakes, and a young, heterosexual sample limit generalization.