This document summarizes the OECD's analysis of G-20 countries' growth strategies. It discusses the OECD's role in assessing the strategies and quantifying their potential economic impacts. The OECD found over 950 policy commitments in the strategies, spanning areas like investment, employment, competition and trade. Using economic modeling, the OECD estimates these commitments could increase G-20 GDP by 1.8% by 2018, though there is uncertainty in such forecasts. Next steps include finalizing the strategies, monitoring their implementation, and further OECD analysis of fiscal policy impacts.