Many different models have been recently proposed to explain the contribution of human resource management to organizational performance, drawing on diverse theoretical frameworks and using many different methodologies. Trying to shed light on the complex state of the art in this field of research, this paper proposes an analysis of the discipline, drawing both on a review of the literature and data obtained from an online questionnaire distributed to human resource management scholars. Key words: Strategic Human Resource Management, Performance, Review of the Literature, State of the Art, Theories, Methodologies Introduction Strategic Human Resource Management (SHRM), and its contribution to organizational success, is now consolidated as one of the most important research questions in the field of human resources. Since the traditional personnel management approach was replaced by strategic models oriented to internal aspects, academic interest shifted from administrative and bureaucratic issues to a much more integrative and proactive approach, directly related to human resource strategies and overarching philosophies (Drucker 1968; Foulkes 1975; Burack/Smith 1977; Watson 1977; Legge 1978; Rowland/Summers 1981; Russ 1982; Galosy 1983; Baird/Meshoulam 1984). Although the development of the field in these first years was criticized because of the lack of solid theoretical foundations (Zedeck/Cascio 1984; Dyer 1985; Bacharach 1989), SHRM research grew progressively, mainly after some crucial theoretical revisions such as those presented by Wright and McMahan (1992), Jackson and Schuler (1995) or the monographic issues of the International Journal of Human Resource Management (1997) and the Human Resource Management Review (1998). In this process, several SHRM models were proposed from diverse research perspectives, incorporating inputs from such very different disciplines as organization theory, sociology, organizational psychology, and management or strategic thinking (Jackson/Schuler 1995; McMahan/Virick/Wright 1999). This continuing explosion of the literature makes it necessary to undertake a systematic analysis of the different explanations that have been offered. The objective of this paper is to review the present state of the art in the field of SHRM research, drawing on a review of the literature and on data obtained from 223 responses to an online questionnaire to Human Resource Management (HRM) scholars from different nationalities and academic contexts. Using the terminology presented by Jackson, Schuler, and Rivero (1989), Brewster (1995, 1999) and Delery and Doty (1996), four research perspectives have been defined to classify the literature: universalistic, contingent, configurational and contextual. These modes of theorizing (Delery/Doty 1996) represent four different approaches to the same research question, each emphasizing a specific dimension of the reality of SHRM. This criterion allows a systematic classification of the literature, because the definition of the four perspectives is based on the same principles, and together they show a spectrum that encompasses all possible approaches. Drawing upon data obtained from an online questionnaire distributed to scholars all over the world, this paper tries to analyse the actual landscape of SHRM research. The study focuses on the extent to which each perspective is used today, and which theoretical frameworks and research methodologies are fostering the development of a universalistic, contingent, configurational and contextual approach. The survey also included questions to determine their research objectives (Snow/Thomas 1994), and the particular areas of interest on which they have focused. The Study: sample and measures To develop this empirical analysis of the state of the art, an online questionnaire was distributed to HRM scholars from all over the world. It contained eight sets of items that respondents were asked to evaluate in a 0 to 5 scale, thinking about their academic activity in the past, present and future. …
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