The book provides a new conceptualisation of inflation in underdeveloped economies, through Sri Lanka historical experience. It outlines a general theory of nationalisms in their diverse manifestations across the world, within a historical perspective of capitalist development and underdevelopment. The book, therefore, seeks to capture the production mode holistically, within both its infrastructural and superstructural levels probing their interactions. The theoretical structure through which inflation is analysed synthesises the theory of unproductive labour and Marxian theory of prices of production with labour surplus theory of late Dr. S. B. D. De Silva in the context of underdevelopment. In this light, Professor David Laibman Allocation Problem is resolved within a Marxist framework to provide an operational significance to the theory and its application.  In the same vein the book also provides a new theoretical interpretation of Sri Lanka historical development fromthe British period onwards through application of theories of capitalist development and surplus labour.