On 3-4 November 2011 we will organize our 14th Annual Research Conference in Amsterdam. This year's topic is 'Complex systems: Towards a better understanding of financial stability and crises'.In the face of the financial crisis, many policymakers felt abandoned by convential economic tools. Serious limitations of existing economic and financial models immediately became apparent. Arbitrage broke down, markets froze and market participants were gripped by panic. Macro models failed to predict the crisis and seemed unable to deal with extreme situations and out-of-equilibrium dynamics. Complex systems offer a new view on macroeconomic and financial phenomena where non-linear feedbacks and collective behavior play an important role.The conference's aim is to bring together researchers and policymakers to deepen our understanding of macroeconomic and financial systems by using methods for complex systems developed in other fields, such as physic, engineering and biology, and to identify more efficient approaches for financial authorities and central banks to pursue their macroeconomic and financial stability goals.