Appended to this reprint of the third edition of Tucker's four economic and political tracts published in 1776 is Tract V ( The respective pleas and arguments of the mother country and of the colonies ) and A series of answers to certain popular objections against separating from the rebellious colonies . Particularly noteworthy is Tucker's contribution to trade theory in Tract I which effectively argued against the position, espoused by David Hume, that rich countries were likely over time to lose their wealth to poorer ones. "Once Tucker's reasoning was accepted ... opposition to free trade could be disarmed and the way cleared for its triumph." The New Palgrave