Norway: A social investment welfare state? Population ageing, globalisation and the transition to post-industrial economies are changing the foundations of modern welfare states. As a promising response to these challenges, «social investments» have appeared high on the supranational agenda. However, the social investment perspective has not received much attention in research on the Norwegian welfare state. Thus, this article asks to what extent Norway is a social investment state. Based on a review of recent comparative welfare state literature and a descriptive analysis of OECD social expenditure data, we conclude that Norway and her Nordic neighbours were forerunners in developing the social investment approach. Moreover, when it comes to actual policy implementation, the Nordic countries are still the best examples of the social investment welfare state.