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...Lecture notes on macroeconomic principles peter ireland department of economics boston college bc edu http www ec html copyright c by redistribution is permitted for educational and research purposes so long as no changes are made all copies must be provided free charge include this notice ch the monetary system introduction in absence money people would have to exchange goods services through barter problem with lies finding a double coincidence wants successful trade requires i you want what your trading partner has ii overcomes since everyone will accept it but how exactly defined its functions does government control supply role do banks play process these questions focus chapter next then begin relate other key economic variables outline meaning federal reserve fed s tools funds rate banking financial crises sometimes say bill gates lot they really mean that wealth economists use term more specific sense refer set assets regularly buy from medium an item buyers give sellers unit a...