This book is devoted to examining the lasting impact of The General Theory and Keynes’'s thought on macroeconomic theory, methodology and its relevance for understanding the financial and economic challenges of the 21st Century. A number of contributions take their departure from Keynes’'s presentation during the 1930s of his new macroeconomic understanding and its policy implications. The book also discusses pluralistic views of Keynes’'s ideas and their importance for contemporary debates