Truncated normal, stochastic frontier, efficiency, multivariate probabilities.
Parametric stochastic frontier models yield firm-level conditional distributions of inefficiency that are truncated normal. Given these distributions, how should one assess and rank firm-level efficiency? This study compares the techniques of estimated (a) the conditional means of inefficiency and (b) probabilities that firms are most or least efficient. Monte Carlo experiments suggest that the efficiency probabilities are more reliable in terms of mean absolute percent error when inefficiency has large variation across firms. Along the way we tackle some interesting problems associated with simulating and assessing estimator performance in the stochastic frontier environment.
Horrace, William Clinton and Richards, Seth O., "A Monte Carlo Study of Efficiency Estimates from Frontier Models" (2007). Center for Policy Research. Paper 68.
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