On reflection the idea of comparative advantage--introduced by the english economist david ricardo in 1817--makes more sense . 总的看来，比较利益说的观点--它由英国经济学家大卫李嘉图在1817年提出--更具有正确性。
2.
On reflection the idea of comparative advantage - - introduced by the english economist david ricardo in 1817 - - makes more sense 总的看来，比较利益说的观点- -它由英国经济学家大卫?李嘉图在1817年提出- -更具有正确性。
3.
On reflection the idea of comparative advantage - - introduced by the english economist david ricardo in 1817 - - makes more sense 总的看来，比较利益说的观点- -它由英国经济学家大卫李嘉图在1817年提出- -更具有正确性。
