It is generally acknowledged that innovation is one of the most important predictors of firm success or failure. Successful innovation processes require creating new organizational capabilities to handle the external pressure for new products and processes (fast, good and at low costs), and the internal pressure for increased efficiency and effectiveness. Under these circumstances 'learning' is an important issue and the increased interest for topics such as knowledge management, organizational learning and continuous improvement illustrates its relevance. Within the CIMA (Continuous Improvement in Global Product Innovation Management) research project (CIMA-ESPRIT 26056) a methodology has been developed to help companies to stimulate learning behaviour of individuals and teams in product innovation processes. By studying learning behaviour in 140 product innovation projects in 70 companies in six countries, a seemingly valid and reliable scale for measuring learning behaviour has been developed. In addition, managerial activities and decisions that are predictive for improving learning behaviour have been identified.