+ Aggregate Timber Supply
Aggregate Timber Supply
Summary 静给能值给坐)器的 tHeory ● Modeling approaches
Summary Theory Modeling approaches
1. Theory 能月辞口影 1.1 timer production function V=v(a,E,q 8.1 nE=maxa,e pv(a, E; e ru-weje rd 8.2 a(p, p, g=a: MBD(a, E; =MOC (a,E; q 8.3
1. Theory 1.1 timer production function 8.1 8.2 8.3 * ( , , ) : ( , ; ) ( , ; ) π max{α, } { ( , ; ) } (α, ; ) ∞ 0 γα a p p q a MBD a E q MOC a E q E pv a E q e wE e V v E q e e e j F raj ＝ ＝ ＝ － ＝ ＝ － －
1.2 Aggregate supply Aiv(a,E;q*hi=g(p, p) H harvest ccis where 8.4 0 othenwise k(a,E; g and S=g(p, p,1) 8.5 T(S,I,1,I,X,Y)=0 T(X,Y)=0 n8=h(p,v)=0 8.8 h(p, w,z) P s=g(P,w,Z) 8.10
1.2 Aggregate supply 8.4 8.5 8.6 8.7 8.8 8.9 8.10 ( , , ) ( , , ) ( , ) 0 ( , ) 0 ( , , , , ) 0 { ( , ; )} ( , , ) [ ] { ( , ; )} * ( , ) 1 1 1 1 , , 0 1 1 , , S g p w Z p h p w Z h p w T X Y T S I I X Y I V a E q and S g p p I where H S A v a E q H g p p i i i SR SR LR t t SR e I i J j if harvest occurs at p p i j otherwise I i J j e i j i j SR e ＝ ＝ ＝ ＝ ＝ ＝ ＝ ＝ ＝ ＝ ＝ ＝ － ＝ ＝ ＝ ＝ ∂ ∂π π π
2. Modeling approaches a Normative approaches ● Positive approaches e Timber supply an empirical analysis Contemporary research issues
2. Modeling approaches Normative approaches Positive approaches Timber supply :an empirical analysis Contemporary research issues