Positive Psychology

An umbrella term for the study of positive emotions, positive character traits, and enabling institutions. The science of positive subjective experience, positive individual traits, and positive institutions.

Reference:
Russell, J. A., & Barrett, L. F. (1999). Core affect, prototypical emotional episodes, and other things called emotion: dissecting the elephant. Journal of Personality and Social Psychology, 76(5), 805-819. doi: 10.1037/0022-3514.76.5.805