The Cambridge Centre for Alternative Finance (CCAF) is an international interdisciplinary academic research institute dedicated to the study of alternative finance, which includes financial channels and instruments that emerge outside of the traditional financial system (i.e. regulated banks and capital markets). Examples of alternative channels are online 'marketplaces' such as equity- and reward-based crowdfunding, peer-to-peer consumer/business lending, and third-party payment platforms. Alternative instruments include SME mini-bonds, private placements and other 'shadow banking' mechanisms, social impact bonds and community shares used by non-profit enterprises, and alternative currencies such as Bitcoin.