Patterns of ‘inventive concentration’ in green technologies are measured and analysed using patent data on fuel cells — potentially one of the most important ‘green’ technologies. Six measures are described and tested: the coefficient of variation; the Herfindhal index; the 4-firm and...

Purpose: The purpose of this paper is to examine how the research knowledge in OM has been obtained and distributed since the first journals in OM began publication in 1980, changes in the interests of OM over the decades and where they are heading in the future; and to explore the changing...

Purpose: The article's aim is to refine prospects for theorising in public sector accounting (PSA) research in order to capture the methodological benefits promised by its multi-disciplinarity. Design/methodology/approach: The study primarily employs a bibliometric analysis of research outputs...

Citation patterns are important to understanding the spread of technological ideas as science is essentially a cumulative activity. One feature only now being appreciated is the obsolescence or ageing patterns in citations and the insights their study can bring. There have been a number of...

Purpose – The purpose of this paper is to explore the development of the electric vehicle, technological capabilities of incumbents and would‐be new entrants in the auto industry. These are discussed with reference to US regulatory moves towards zero emission standards to provide a new...