Political Economy - Professor Jonathan Michie Piketty's book on Capital in the 21st Century warns that the growth of inequality in both wealth and incomes witnessed over the past 30 years is set to continue as a long-term trend, and that this is unsustainable economically, socially and politically. Is he right? And if so, what can be done to create a sustainable economy? Professor Jonathan Michie is Director of the Department for Continuing Education.