kuri@for.agr.hokudai.ac.p
Abstract Koichi Kuriyama: The Estimation of Public Demand for the Forest Management: Contingent Ranking Study. The purpose of this paper is to argues the measurement of the public demand for watershed, recreation, and ecosystem and wildlife management using the contingent ranking technique. The empirical analysis used the survey data of watershed forest management of Yodo River basin in Japan. The results are as follows: (1) Many residents in downstream of Yodo River basin agree with cost-sharing of forest management. (2) Marginal willingness to pay of watershed management is 1,385 yen, recreational management is 771 yen, and ecosystem and wildlife management is 317 yen. (3) The multiple-use management of timber production, watershed, recreation, and ecosystem and wildlife management has highest value (364 billion yen). These results suggest that public people need the multiple-use forest management rather than dominantuse management. Keywords: multiple-use management, public demand, contingent ranking, environmental valuation
U i (Q water,q rec,q wild,m i C i ) = V i (Q water,q rec,q wild, M i C i ) + ε i ( ) ( ) P i = Prob U i > U ik, k = Prob V i V ik > ε ik ε i, k V i V i1 V i V i 2 V i V i 5 = L f ( ε 1, ε 2,L, ε 5,Ω)d ε 5 d ε 4 Ld ε 1 ε k =ε ik ε i f ( ) P i = e V i k e V ik Pr[r] = Pr[U i1 > U i2 > U i 3 > U i4 > U i 5 ]
Pr[r] = e V i e V ik k= V i = β water Q water + β rec Q rec + β wild Q wild + β cost C i dv i = V i Q water dq water = β water dq water + V i dq Q rec rec + β rec dq rec + Vi dq Q wild + V i wild dc dc i i + β wild dq wild + β cost dc i MWTP water = dc i dq water = β water β cost V i = α + β cost C i
V i (M WTP ) = V i1 (M) α + β cost WTP = 0 WTP = α β cost