【经】 价值的劳动理论, 劳动价值论

比较成本说是十九世纪前叶英国产业革命时期阶级斗争的产物，李嘉图的比较成本说建立在劳动价值论的基础上，揭示了两国通过分工实现这种比较利益即节约社会劳动的可能性。

International Labor Day; Labor's Day; May Day

labor

obstructed labor

Painless Labor

direct labor hour rate

division of labor

tackle the problem of employment of the labor force

threatened labor