New York: Breaking News! A recent study has revealed that elder children are more selfish and less willing to cooperate with their siblings, as compared to the younger ones. Researchers from the Montpelier University in France made this revelation.

The study also said that arrival of a younger brother or sister often causes a lot of emotional impact on the elder children. When they find that they no longer remain the center of attraction of their parents, they get upset and angry and feel neglected.

The researchers adopted a unique method to prepare the study. They asked the children to play a game that involved passing money from one player to another. While the elder ones showed less interest in returning the money to their mates, the younger ones were generous in exchanging money.