Who propounded the theory of the circular flow?

What is the approach march technique? What is the economic definition of capital? The economic system which combines both captialism and socialism is called? How much do the farmers get per sack of fair-trade cocoa? What are the advantages of alcohol on the economy? What are the objectives of export trade? Is Alaska a developing country? Why do exchange rates exist? What is the causes of monetary inflation? What effect does rationing have on the economy? What organization regulates the sale of stock in corporations? Define supply and supply schedule? How are bond prices affected when the Federal Reserve lowers the interest rate? What is the contingency quantities in a bill of quantity called? What are the impact of deregulation of oil sector on Nigeria economy? What is airgonomics? What is a constant production? Why does the gpd omit government transfer payments? Is salt an elastic or inelastic product? How does Bill Gates help?