This paper provides estimates of the elasticity of substitution between operational and managerial jobs in the US economy during the years 1969-2011, derived from an aggregate CES production function. Estimating the long-term relationship between (the log of) the aggregate...

We suggest a robust form of conditional moment test as a constructive test for functional misspecification in multiplicative error models. The proposed test has power solely against violations of the conditional mean restriction but is not affected by any other type of model misspecification....

This paper studies the robust estimation and inference of threshold models with integrated regres- sors. We derive the asymptotic distribution of the profiled least squares (LS) estimator under the diminishing threshold effect assumption that the size of the threshold effect converges to zero....