... (B .33 )Using Shephard’s Lemma gives the result immediately. 23. From (4.27) we see thatV (tp; C(tp; )) = ; (B .34 )518 APPENDIX A. MATHEMATICS BACKGROUNDA.8.2 Bayes’ruleLet E1, E2, E 3 be ... fallen, and so the expression ispositive, the same sign as the welfare change.26. Use equation (4. 23) and apply reasoning similar to the answer to question19.27. Compare equations (4 .37 ) and ... footnote 33 in chapter 2: rewrite q (z1; z2) as (q1; q2)+q 3 0 where q1:= z1, q2:= z2, q 3 := q. Figure B.16 illustrates this –com-pare this with Figure 2.7.5. If Q1and...