One of the key aspects of Bangladeshi politics is the "spirit of the liberation war" which refers to the ideals of the liberation movement during the Bangladesh Liberation War. The Proclamation of Independence enunciated the values of "equality, human dignity and social justice". In 1972, the constitution included a bill of rights and declared "nationalism, socialism, democracy and secularity" as the principles of government policy. Socialism was later de-emphasised and neglected by successive governments. Bangladesh has a market-based economy. To many Bangladeshis, especially in the younger generation, the spirit of the liberation war is a vision for a society based on civil liberties, human rights, the rule of law and good governance.