Inequality is on the rise, leads to a massive problem of justice and has economic, social and political consequences. In the wake of the financial crisis, social inequality has moved to the center of political interest. The aim is to prevent high unemployment, falling real wages and persistent recession. The increasing gap between rich and poor is the largest threat to the world economy. Inequality leads to negative consequences for social growth and decent work, income disparity, cements social inequalities and power relations hampered social mobility, jeopardizing social peace and undermines democracy. Against this background, the seminar of the Progressive Alliance centers on the question of how to fight inequality. A policy paper “Economic inequality or prosperity for all?” will be presented, followed by several discussions about experiences and best practices.