Does the Free Market lead to demographic implosion?

http://en.wikipedia.org/wiki/Iron_law_of_wages

Ricardo and Malthus debated this in a lengthy personal correspondence. [6]

http://oll.libertyfund.org/index.php?option=com_staticxt&staticfile=show.php%3Ftitle=114&Itemid=27

0687-02_TP0687-02_ToC

About this title:

David Ricardo and T. R. Malthus shared an endearing friendship despite a contentious divergence of opinion on many political economic issues. This volume contains the formal remnants of their differences. Ricardo analyzes, issue-by-issue, his points of divergence to Malthus’s Principles of Political Economy. Malthus’s contributions to political economics generally concern his bleak forecast that a geometrically growing population would surpass the arithmetically growing capacity of essential natural resources.