User For Adam Smith, a nation's wealth came from Question Blank 1 of 4 its natural resources, especially agricultural land and gold or the productivity of its laborers and the extent of its trade . Therefore, he argued, the quantity of wealth in the world was Question Blank 2 of 4 finite or infinite , because Question Blank 3 of 4 resources like farmland and gold are goods in limited supply or technological innovations can always make labor more productive . If one accepts his argument as correct, the best way for a nation to increase its wealth is to Question Blank 4 of 4 restrict foreign trade and subsidize local producers or encourage foreign trade and economic competition