A doubt about Game Theory(Gibbons, Game Theory for Applied Economists) - MathOverflow [closed]most recent 30 from http://mathoverflow.net2013-05-19T23:04:22Zhttp://mathoverflow.net/feeds/question/30152http://www.creativecommons.org/licenses/by-nc/2.5/rdfhttp://mathoverflow.net/questions/30152/a-doubt-about-game-theorygibbons-game-theory-for-applied-economistsA doubt about Game Theory(Gibbons, Game Theory for Applied Economists)Survivor2010-07-01T07:41:18Z2010-07-01T08:17:56Z
<p>When I read the book write by Robert Gibbons . In the first chapter, they discussed "The Problem of the Commons" I can't understand why</p>
<p>$v^{'} \left(g_i + g_{-i}^{*}\right)$ (page 27)</p>
<p>represent the damage of the price of the original price of the sheep.</p>
<p>I think the damage of the price of the original price should be:</p>
<p>$v \left(G\right) - v\left(g_i + g_{-i}^{*}\right)$</p>
<p>where $G$ means the original number of sheep . the price function $V$ has the relationship with the number of the sheep.</p>
<p>Also in the page 27, the author say the first order condition for this optimization problem </p>
<p>is
$v \left(g_i + g_{-i}^{*}\right) + g_iv^{'} \left(g_i + g_{-i}^{*}\right) -c =0$</p>
<p>I can't understand the author want to say......Perhaps he means we should find $g_i$ as bigger as possible until we can't earn more money when we add more sheep. </p>