This paper addresses the problem of point identification in the presence of measurement error in discrete variables; in particular, it considers the case of having two "noisy" indicators of the same latent variable and without any prior information about the true value of the variable of...

The paper explains the low wages of the disabled in a monopsonistic framework. In the disabled m arket firms face different costs of adjustment ("disabled-friendly" firm vs. "disabled-unfriendly" firm), high or low, and offer wages according to these costs. Hence, there will be high- and...

We present a job posting model of a labour market where jobs differ in characteristics other than wages and workers differ in their marginal willingness to pay for such characteristics. This creates incentives for firms to separate workers by posting multiple jobs. The interaction between these...