Table 9.1 also draws attention to the possible impact on well-being of an expected trend in the future (J3B). This has sometimes been examined as perceived probability of success, and positive expectations of that kind are significantly associated with subjective well-being (e.g., Emmons, 1986); well-being is enhanced when a future trend is envisaged to be positive. In everyday situations, happiness is often felt to depend to be positive. In everyday situations, happiness is often felt to depend on “having something to look forward to.” One implication of this is that in negative situations, for instance of job stress, it can be predicted that employees’ unhappiness will be in part a function of expected future levels of that stress. Examining the extent to which employees mentally “switch off” after a working day, Sonnentag and Bayer (205) suggested that “it is not primarily the amount of time pressure that one has faced during the working day that makes psychological detachment difficult, but rather the anticipation that time pressure will continue during the working days to come” (p. 409)