Krugman test

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Part 1
INTERNATIONAL TRADE THEORY
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CHAPTER 2LABOR PRODUCTIVITY AND COMPARITIVE
ADVANTAGE THE RICARDIAN MODEL
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Figure 2-1 Homes Production Possibility
Frontier
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Figure 2-2 Foreigns Production Possibility
Frontier
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Figure 2-3 World Relative Supply and Demand
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Figure 2-4 Trade Expands Consumption
Possibilities
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Figure 2-5 Determination of Relative Wages
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Figure 2-6 Productivity and Exports