 A fourth family of views, hybrid theories, attempts an irenic solution to our diverse intuitions about happiness: identify happiness with both life satisfaction and pleasure or emotional state, perhaps along with other states such as domain satisfactions. The most obvious candidate here is subjective well-being, which is typically defined as a compound of life satisfaction, domain satisfactions, and positive and negative affect. (Researchers often seem to identify happiness with subjective well-being, sometimes with life satisfaction, and perhaps most commonly with emotional or hedonic state.) The chief appeal of hybrid theories is their inclusiveness: all the components of subjective well-being seem important, and there is probably no component of subjective well-being that does not at times get included in “happiness” in ordinary usage.