As the OECD is celebrating its 50th anniversary, member countries are exiting from the biggest post-war financial and economic crisis and are trying to put their economies back onto strong, sustainable footing. While financial reforms should provide for a better, more sustainable balance between stability and growth, measures to strengthen the savings-investment channel should foster sustainable growth and development. These issues were explored at a High-Level OECD Financial Roundtable and are summarised in this article. Covered are the topics of financial reform to foster stability and long-term growth, the contribution of institutional investors to long-term growth, and creating a better environment for the financing of business innovation and green growth. With strained public sector finances, private capital needs to fill the funding gap for infrastructure and other long-term projects. Appropriate regulatory incentives to overcome short-termism, as well as risk-sharing arrangements e.g. via publicprivate partnerships, are needed in order to encourage market-based, long-term investment and risk capital financing. Better transparency, information and investor education can also play a role in enhancing long-term savings and investment.