The exchange of knowledge between Europe and developing countries is often measured by the number of joint patents for which researchers from both worlds apply. Gaétan de Rassenfosse (EPFL) and Florian Seliger (ETH Zurich) here demonstrate developments in individual sectors: The IT and communication technology sector (blue) is rising, while measuring equipment (yellow), chemistry (red), machines (green) and other sectors (orange) are sinking.

G. de Rassenfosse and F. Seliger: Sources of knowledge flow between developed and developing nations. Science and Public Policy (2020)