Pal, Rupayan; Saha, Bibhas - eSocialSciences - 2010
wage is not observed, contracts feature over-employment. Under separating equilibrium the low type is over-employed, and … under pooling equilibrium the high type is over-employed. But when wage is observed, pooling equilibrium may not always … exist, and separating equilibrium does not involve any inefficiency. [Working Paper No. 2010-016]. …