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- 2011-7-11
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- 2016-4-18
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Its just a general rule.
If it doesn't touch the frontier, it is note achievable. If it is below the frontier, it is not efficient.
I believe there is a graph in the text that has 3 indifference curve (one above, one tangent, one below going through two points) |
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发表于 2011-7-13 16:27
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