The concept of Public Service Motivation was formalized in the late 1970s and early 1980s by authors like Buchanan, Mosher, Perry, Porter, and Rainey.[4][5][6][7] Since then, it has gained international prominence.[8] PSM varies between employees and it is difficult to generalize the motivations of everyone who works in the public sector. With that said, PSM is an important driver in public sector employment.[9] Thus, a responsive and cost-effective government should acknowledge that failure to properly understand the motivations of public employees may lead in the short term to poor job performance and in the long term to permanent displacement of public service ethic.[10] Although intrinsic, PSM is influenced by a variety of extrinsic factors (social, political, institutional etc.) and, in time, those factors may lead to a change of the initial PSM of the individual. If the extrinsic factors that act on the public servant are negative, PSM will influence the behaviour of the individual for a period of time that is smaller than the professional career of that individual. If the extrinsic factors are positive, the PSM can influence the behaviour of the public servant during the entire career. This period of time, when the PSM influence the activity of the individual is a period when the public servant is led by a certain “lyricism of the public service”, an “administrative romanticism”, by the altruistic wish to serve the community, the state, the nation or even the human kind, the inner need to identify the personal actions with the public interest.