Talk:Production possibilities frontier

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[edit] Free disposal

What is free disposal? Samnikal 23:45, 15 May 2006 (UTC)

[edit] Section 1

3rd paragraph from bottom,the following sentence deleted:

The concavity reflects the higher marginal costs that become inevitable due to diminishing marginal returns in the production of each good as output of the other good approaches zero (that is, at either extreme of the curve).

Diminishing returns in the link and as usually presented is relative to a fixed input relative to one good, not a transformation curve between goods. -- Thomasmeeks 17:14, 1 February 2007 (UTC)