<p>这个paper的cover上有这么一句话:</p><p>Preliminary and incomplete, comments welcome...</p><p></p><p><a href="http://www.rotman.utoronto.ca/finance/seminars/030117_boyle.pdf">http://www.rotman.utoronto.ca/finance/seminars/030117_boyle.pdf</a></p>

[此贴子已经被作者于2008-12-26 21:40:55编辑过]