Research into the nature, antecedents and effects of university-level entrepreneurship has grown due to the emergence of the university technology transfer phenomenon and the evolution of university's role in national innovation systems and economic development. From the literature survey, three research categories for university-level entrepreneurship are identified and examined namely entrepreneurial university, academic entrepreneurship and university technology transfer. Then, a framework depicting the relationship of the three research categories is developed and discussed. Lastly, recommendations are made for future research and analysis. extcopyright Springer Science + Business Media, LLC 2007.