Chiang Kao is a University Chair Professor of Industrial and Information Management at National Cheng Kung University in Taiwan. After joining Cheng Kung University, he has engaged in stays at Purdue University (USA), Aachen University of Technology (Germany), INSEAD and the University of Paul Sabatier (France), and the University of Bologna (Italy). He has also been hired by the Computer Science Department of Southwest Texas State University.

Professor Kao has also held administrative posts at Cheng Kung University, including Chairman of the Department of Industrial and Information Management, Dean of the College of Management, and University President. He has published more than eighty papers on DEA in international journals, thirty of which concern network DEA. Currently, he serves on the Editorial Board of the European Journal of Operational Research and an Associate Editor for Omega.

Introduction.- Output-Input Ratio Efficiency Measures.- Distance Function Efficiency Measures- Slacks-Based Efficiency Measures.- Efficiency Measurement in Special Production Stages.- Special Types of Input and Output Factors.- Special Types of Data.- Changes of Efficiency over Time.- Basic Ideas in Efficiency Measurement for Network Systems

Basic Two-stage Systems.- General Two-stage Systems.- Multi-Stage Systems.- Parallel Systems.- Mixed Systems.- Dynamic Systems.- Linkage Efficiency.- External and Internal Evaluations.- Epilogue.- Index