Measuring Values of Wetland Network in Taiwan

The significant variables affecting the willingness to pay of \"reserving all avian species\" include he reason for unwilling to pay is \"conservation work should be done by the government, not me\" (a=5%) and relative weight of population size factor (a=10%). The estimated median annual willingness to pay is NT$1,208.94 for \"reserving all avian species in Taiwan\" and NT$1,237.01 for \"reserving all rare and uncommon avian species in Taiwan.\" The confidence interval under a=5% is ( NT$883.98, NT$1664.6) and (NT$903.80, NT$1703.83), respectively, which shows that the willingness to pay for the two networks is not significantly different.

A comparison among various value-evaluation studies on wetlands in Taiwan shows that the values of individual wetland and all wetlands are close to each other, which implies the embedding problem. Therefore, the evaluation of wetlands should be based on all substitution wetlands instead of individual wetland. Keywords: heuristic algorithms, linear- programming optimizations, wetland network, expenditure function, maximum likelihood estimation (MLE), willingness to pay (WTP)