APPENDIX B
This appendix supports the comparative statics results in Chapter 7 by establishing the signs of the derivatives of the thresholds in Appendix A.2 with respect to their component parameters.
B.1 FROM EQUATION (A.5), 
B.2 FROM EQUATION (A.2), 
B.3 FROM EQUATION (A.3), 
B.4 FROM EQUATION (A.4), 
B.5 FROM EQUATION (A.6), 
B.6 FROM EQUATION (A.7), 
