Answer:
Organizational citizenship behaviour (OCB)
Explanation:
Michael is constantly pitching in and helping out when someone on the team needs help, even if it means staying late. Michael's behavior can best be described as OCB.
OCB is an employees discretionary behaviour of always helping out with duties and jobs which are contractually not his or her responsibility so as to achieve set targets, it is a sense of commitment by employees to put the organization first even though it may not be convenient.
