The wrong kind of stimulus may get in the way of future productivity growth by channeling workers into the wrong kind of employment (or keeping them there). Large-scale public projects, particularly when they are aimed simply at putting as many people as possible quickly back to work, will lead to a shortage of labor available for more productive jobs.
错误的刺激或许会妨碍未来生产率的增长，因为它将员工配入（或钉在）了错误的就业岗位。大规模公共工程，特别是当它们的唯一目的是尽快让尽可能多的人口回到工作中去时，会导致生产率较高的岗位出现劳动力短缺。