Standard economic theory identifies a trade-off between up-or-stay and up-or-out promotion rules. Up-or-stay never wastes the skills of those not promoted but may provide insufficient incentives to invest in skills. Up-or-out can always induce investment in skill acquisition but may waste the...

Standard economic theory predicts that firms will not invest in general training and will underinvest in specific training. Empirical evidence, however, indicates that firms do invest in general training of their workers. Evidence from laboratory experiments points to less underinvestment in...