70 ◾ Logics of Legitimacy
e other approach to PSM has considered its multifaceted dimensions, regard-
less of sector of employment. e rst stream has failed to produce consistent
ndings due to the fact that it may not be a sectorally linked concept. But more
important, earlier approaches failed to appreciate diering conceptualizations of
the term public service. us, the second stream of research has sought to clarify
these conceptualizations (Brewer, Selden, and Facer 2000; Rainey 1982). Initial
research on the dimensions of PSM rst found that public service motives may be
rational, norm based, and aective (Perry and Wise 1990). Rational motives are
grounded in interest- based concepts of human and organizational behavior