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gid steplike progression. ERG:contains a frustrationregression dimension ? Several studies have supported the ERG theory:natives of Spain Japan place social needs before their physiological requirements ’ s theory of needs Ach,pow,aff are 3 important needs that help to understand Mo ? Achievement need:The drive to excel,to achieve in relation to a set of standards,to strive to succeed ? nPow:the desire to make others behave in a way that they would not otherwise have behaved in ? nAff: the desire for friendly closely interpersonal relationships ? High achievers preferring personal responsibility,feedback, moderate riskssuccessful in entrepreneurial activities, salespeople running a selfcontained unit within a large anization。Class Theory 167。 The best managers are highpower need lowaffiliation need,level in a hierarchical anization Evaluation Theory may be relevant to that set of jobs that falls in betweenneither extremely dull nor intersting ? Allocating extrinsic rewards for behavior that had been previously intrinsically rewarded tends to decrease the overall level of motivation ? Explanation:the individual experiences a loss of control over his behavior so the previous intrinsic motivation diminishes。 Selfoutside。 Selfoutside ? Minor qualifications: have a great deal more tolerance of overpayment inequities than of underpayment inequities. all people are equity sensitive,such as benevolent types