1) The document discusses Professor Michael Porter's research on clusters and competitiveness. It argues that a nation's prosperity is determined by productivity, not comparative advantage.
2) Productivity depends on both the value and efficiency of production. Nations compete by offering the most productive business environment. Wealth is created by choices, not endowments.
3) A nation's productivity and growth are determined by internal company operations/strategy and external quality of the business environment, including clusters of competing and collaborating firms in an industry.