It is common in fi rm level environmental efficiency studies for pollution to form part of the production technology. We omit nitrogen and sulphur emissions from the spatial analysis of production in European countries (1995 - 2008) because we find they are not signi cant inputs. Efficiency and...

Chapter 1. Introduction -- Chapter 2. Robust Dynamic Space–time Panel Data Models Using εε-contamination: An Application to Crop Yields and Climate Change -- Chapter 3. Unbiased Estimation of the OLS Covariance Matrix When the Errors are Clustered -- Chapter 4. Refined GMM Estimators for...