Peer Effects refers to that the behavior injustice of an individual in society will be affected not only by the individual's own material, but also by the surrounding people with the same or similar status, experience or background, so as to change the behavior that an individual may take when he exists alone.
According to the above definition, which of the followings belongs to Peer Effects:
Xiao Na originally planned to work after graduating from University, but the dormitory students were actively preparing for the postgraduate entrance examination. Xiao Na thought that the postgraduate entrance examination was also good and joined the ranks of the postgraduate entrance examination