Acemoglu, Daron; Shimer, Robert - C.E.P.R. Discussion Papers - 1997
or more of the posted wages, i.e. search, before deciding where to apply. Both with homogeneous and heterogeneous forms …, equilibrium wage dispersion is necessary for the economy to approximate efficiency. Without wage dispersion, workers do not search …, and wages are depressed. As a result: (a) there is excessive entry of firms; and (b) because, in the absence of search …