https://archive.freecapitalists.org:443/forums/5.aspxenCommunityServer 2008.5 SP2 (Build: 40407.4157)https://archive.freecapitalists.org:443/forums/thread/236147.aspxTue, 28 Jul 2009 21:13:12 GMT944abf2b-d1be-4bf2-990d-438cb0e377e9:236147Jon Irenicus0https://archive.freecapitalists.org:443/forums/thread/236147.aspxhttps://archive.freecapitalists.org:443/forums/commentrss.aspx?SectionID=5&PostID=236147<p>TP applies to homogeneous goods. Your first answer is IMO correct, you&#39;re dealing with heterogeneous goods.</p><div style="clear:both;"></div>https://archive.freecapitalists.org:443/forums/thread/236144.aspxTue, 28 Jul 2009 21:10:18 GMT944abf2b-d1be-4bf2-990d-438cb0e377e9:236144Rafael Hotz0https://archive.freecapitalists.org:443/forums/thread/236144.aspxhttps://archive.freecapitalists.org:443/forums/commentrss.aspx?SectionID=5&PostID=236144<p>Suppose an island where the only food is fresh fish. Crusoe has, say, 10 fish, and he knows that in a few months he won&#39;t be able do catch them by himself (he&#39;s too old). He then decides do exchange with Friday, and the deal he gets turns out to be 10 present fish for 9 future fish.</p> <p>&nbsp;</p> <p>I thought in two answers for the negative spread: fish when able to work and fish when unable to work are different goods (like the commom &quot;ice objection&quot; to Time Preference), or that there must be something like a purchasing power premium for the rottening of the fish (it&#39;s value is not transported through time)...</p> <p>&nbsp;</p> <p>Any thoughts?</p><div style="clear:both;"></div>