Open Access

Simon ZüfleORCiD, Frank Bickenbach

• The global proliferation of organizations like incubators, accelerators, and co-working spaces is particularly striking on the African continent. Over the last 10+ years, a large number of such organizations have been established in African countries, which are mainly referred to as (innovation) hubs. However, along with the strong growth in the number of innovation hubs, a vast increase in the diversity of these organizations can also be observed, resulting in a general fuzziness of the hub concept. In this critical review, we describe the origin and the evolution of the concept. We contribute to the literature by providing conceptual clarity and disentangling the fuzziness of the innovation hub concept. We introduce a new definition of innovation hubs and develop four key differentiation criteria. Based on that, we provide avenues for advancing research on innovation hubs. Our review also entails practical implications, as entrepreneurs in African countries are wondering which type of hub they should choose for developing their business ideas and growing their entrepreneurial ventures.