Assertion: mood | /r/CapableOf | affect the staff's performance
Facets:
value: positively
type: MANNER
Source sentences:
text: In one of a multitude of such studies involving 53 sales managers in retail outlets who led groups ranging in size from four to nine members, it was found that when managers themselves were in an upbeat, positive mood, their moods spilled over to their staff, positively affecting the staff's performance and increasing sales.