Index | 3 |
Abstract | 4 |
1 Introduction | 5 |
2 Background | 7 |
3 What is an efficient policy? | 11 |
4 Data and methodology | 13 |
5 Results | 16 |
6 Discussion | 22 |
References | 24 |
Appendix A | 27 |
Appendix B | 31 |
Appendix C | 32 |
Appendix D | 33 |
Appendix E | 36 |