- Greenhill, R., Carter, P., Hoy, C. and Manuel, M. (2015) Financing the future: how international public finance should fund a global social compact to eradicate poverty. London: Overseas Development Institute.
- National Audit Office (2015) 'Taxpayer support for UK banks'
- SIPRI (2014) 'Trends in world military expenditure 2013'
- World Bank 'Data on OECD members'