Christine Lagarde, the head of the International Monetary Fund has fired a warning to China to stop being dependent on exports and investment. She said China's leadership appears to be willing to make the changes to ensure the world's second-largest economy remains a main driver for global growth, but added the authorities needed to boost household incomes and to make sure the benefits of growth were reaching more people. More about: China, Christine Lagarde, Financial Crisis, IMF, Oil market