In December 2010, the Commission signed a contract for a retrospective evaluation of the consequences, in economic terms, of the functioning of the most pertinent elements of the current EU VAT system, as identified in the "Green Paper on the future of the VAT". The final report was submitted by...

This paper surveys the growing literature on diagnostic testing of models based on unit record data. We argue that while many of these tests are produced in a Lagrange multiplier framework they are often more readily derived, and more easily applied, if approached from the conditional moment...

This paper derives elasticity estimates for the electricity demand of a cross section of residential customers in Medellin, Colombia, where prices follow a rising block scheme. It contrasts methods following Jerry Hausman (1979, 1985) with those based on Harvey Rosen (1976). To resolve the...