If just 10 percent more of Britain’s super wealthy were as charitable as their peers, an extra £2 billion could be raised for UK philanthropic causes, says MP Rushanara Ali.

She is the chair of a new all-party parliamentary group (APPG) on philanthropy launched this week, which aims to encourage philanthropy and discuss the role of modern philanthropy and social investment in the UK.

The APPG is supported by the Beacon Collaborative and Philanthropy Impact. It aims to connect parliamentarians with philanthropists, social investors, trusts and foundations, to share research and help tackle the social challenges that w...