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What Causes Cross-industry Differences of Technical Efficiency? An
Empirical Investigation
Using micro-level panel data of about 35,000 firms from the German Cost Structure Census, the authors analyze the differences of technical efficiency across industries. One striking result is that the distribution of technical efficiency across industries is positively skewed.
Link
http://www.diw.de/deutsch/produkte/publikationen/diskussionspapiere/docs/papers/dp457.pdf