Many countries around the world are partly prefunding their otherwise pay-as-you-go (PAYG) financed social security systems by establishing or further developing existing public pension reserve funds (PPRFs). Most OECD countries have put in place internal and external governance mechanisms and investment controls to ensure the sound management of these funds and better isolate them from undue political influence. These structures and mechanisms are in line with OECD standards of good pension fund governance and investment management. In particular, the requirements of accountability, suitability and transparency are broadly met by these reserve funds. However,.