Managerial economics is a flood of the executives concentrate on that accentuates principally tackling business issues and direction by applying the hypotheses and standards of microeconomics and macroeconomics. It is a particular stream managing an association's interior issues utilizing different financial speculations. The financial aspect is an essential piece of any business. This single idea determines all the business suppositions, estimating, and speculations. There is administrative financial aspects, significance more or less. This book will be useful for engineering and engineering diploma students of various universities, it is also useful for MBA students. There are Six main units with Introduction to managerial economics, International Trade, Balance of Trade and Payment, Theory of Costing, Introduction to Macro Economics, Demand Analysis, and Theory of Production.