The World View article titled "United States Gains Cost Advantage" says productivity advances have contributed to U.S.competitiveness in world markets.When improvements in productivity reduce costs, the production function shifts

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When productivity improves, it means more output can be produced with the same amount of inputs, effectively reducing the cost per unit of output. This results in the production function shifting upward (indicating increased efficiency or output) and cost curves shifting downward (indicating lower costs).

The World View Article Titled "United States Gains Cost Advantage