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A Panel Data Analysis of Inefficiency and Heterogeneity in the Postal Sector
Cazals, Catherine,
The Effect of Unobserved Heterogeneity in Stochastic Frontier Estimation: Comparison of Cross Section and Panel with Simulated Data for The Postal Sector
Cazals, Catherine, (2010)
The effect of unobserved heterogeneity in stochastic frontier estimation : comparison of cross section and panel with simulated data for the postal sector