Replaced by
Catherine Cazals, Jean-Pierre Florens, and Léopold Simar, “Nonparametric Frontier Estimation: A Robust Approach”, Journal of Econometrics, vol. 106, n. 1, January 2002, pp. 1–25.
Reference
Catherine Cazals, Jean-Pierre Florens, and Léopold Simar, Nonparametric Frontier Estimation: A Robust Approach, 2002.
Published in
2002