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...Ten principles of economics p r i n c l e s o f u rt h di t gregory mankiw premium powerpoint slides by ron cronovich re edited xue jinjun translated gao xiaochun update in this chapter look for the answers to these questions what kinds does address are how people make decisions interact economy as a whole works is all about scarcity decide buy much work save and spend firms produce many workers hire society decides divide its resources between national defense consumer goods protecting environment other needs...