Imposing local concavity in the translog and generalized Leontief cost functions

By David L. Ryan, T. Wales. 2000

184 citations recorded by the source corpus.

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Imposing and Testing Curvature Conditions on a Box–Cox Cost Function (2003, unknown): “More recently, Ryan and Wales (1998, 2000) and Moschini (1999) discussed further techniques to impose concavity.”
Jevons’ Paradox revisited: The evidence for backfire from improved energy efficiency (2009, background): “However, Ryan and Wales (2000) show that if concavity is imposed locally at a suitably chosen reference point, the restriction may be satisfied at most all of the data points in the sample.”
The Capital-Energy Controversy: An Artifact of Cost Shares? (2002, background): “…in the last six years (1996-2001), more than 100 contributions to the literature can be found (Econlit) utilizing, or at least mentioning, the translog cost function approach, with Kumbhakar (1997), Yatchew (2000), Ryan and Wales (2000), and Thomsen (2000) being the most important articles.”
A Bayesian Approach to Imposing Curvature on Distance Functions (2005, methodology): “2 These include the Cholesky factorisation approaches discussed in Diewert and Wales (1997) and Ryan and Wales (2000) 4 Fare and Primont (1995, p. 16) note that an assumption of weak disposability is sufficient for the technology to be fully characterised by the output distance function.”