4. Like the supply curves you studied in Chapter 5, it is determined, at least in part, by the desire of firms to earn a profit. That is why the graph shows output increasing as the price level rises.
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11. Comparing Standards of Living Suburban community in Niger, Africa Suburban community in the United States
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14. R&D + Capital Investment = Economic Growth Tools wear out and depreciate Capital Investment: buy new tools Research & Development: Latest greatest tools Buy New, Improved Equipment: often before old ones wear out R&D Leads to Capital Investment