The head of the International Monetary Fund, Christine Lagarde, told an audience in London that six years on from the deep financial crisis that engulfed the global economy, banks were resisting reform and still too focused on excessive risk taking to secure their bonuses at the expense of public trust. She said: The behaviour of the financial sector has not changed fundamentally in a number of dimensions since the crisis. The industry still prizes short-term profit over long-term prudence, today's bonus over tomorrow's relationship. Some prominent firms have even been mired in scandals that violate the most basic ethical norms - Libor and foreign exchange rigging, money laundering, illegal foreclosure." Lagarde warned the too-big-to-fail problem among some of the world's largest financial institutions was still unresolved and remained a major source of systematic risk, with implicit subsidies of $70bn (42bn) in the US, and up to $300bn in the eurozone. Lagarde said international progress to reform the financial system was too slow. Lagarde told [the] conference that rising inequality was also a barrier to growth, and could undermine democracy and human rights. The issue has risen up the agenda in recent months with the publication of the French economist Thomas Piketty's book, Capital in the Twenty-First Century. "One of the leading economic stories of our time is rising income inequality, and the dark shadow it casts across the global economy," Lagarde said.