1. Introduction - 2. The theory of consumer´s behaviour - 3. The theory of producer´s behaviour - 4. The theory of pricing - 5. The theory of income distribution - 6. The theory of the equilibrium level of national income and of prices – 7. The theory of economic growth – 8. The theory of international trade – 9. Economic doctrines and economic policy – 10. Economic theory and economic policy – 11. The limited practicability of the theory – 12. The significance of economic theory -