Measuring Up : Improving Health System Performance in OECD Countries Proceedings of the Ottawa Conference November 2001. How can we measure the performance of different health systems and how can we use such information to support on going health systems improvement Those are the central questions addressed in this volume. Health policy makers have a growing interest in finding ways of encouraging health systems to improve their performance where performance is measured against quality efficiency or equity goals. Improving performance has the potential to reduce the tensions between rising demands and limited resources. There is also a growing demand for a