Ann Pettifor was one of few to predict the Great Financial Crisis in The Coming First World Debt Crisis (Palgrave 2006). In 2008 she jointly co-authored the original The Green New Deal (New Economics Foundation). In 2017 she published The Production of Money (Verso) on the nature of money, debt and banking. In 2019 her book The Case for The Green New Deal (Verso) was published. 

She is director of Policy Research in Macroeconomics (PRIME) – a network of mainly Keynesian economists. In 2018 Germany’s Heinrich Boll Foundation awarded Pettifor the Hannah Ahrendt Prize.  She is a fellow of the New Economics Foundation, and a trustee of the PREP Foundation for pluralist economics. 

In 2000 the University of Newcastle awarded her an honorary doctorate for leading an international movement for cancellation of $150bn of debt owed by 35 poor countries, Jubilee 2000. In 2004-5 Pettifor worked with Nigerian Finance Minister, Ngozi Okonjo-Iweala to clear debts of $30 billion owed to official creditors.