We assess the impact, on workforce contract composition, employment adjustment dynamics and productivity, of a combination of changes in the Colombian labor legislation which increased firm's ability of using contracts of a temporary nature, and posterior changes that increased the costs...

A number of authors have attemted to test whether the U.S. economy is in a determinate or an indeterminate equilibrium. We argue that to answer this question, one must be impose a priori restrictions on lag length that cannot be tested. We provide examples of two economic models. Model 1...