Opportunity Cost and Employment Effect of Emission Reduction: An Inter-Industry Comparison of Targeted Pollution Reduction Professor Subhash C Ray, University of Connecticut, USA | The Use of DEA in Economic Regulation – Sample Cases from Europe Professor Emeritus Emmanuel Thanassoulis, Aston University, UK | Data envelopment analysis with volume and ratio inputs and outputs Professor Victor Podinovski, Loughborough University, UK |