Table 17.6
Summary of benefit–cost results
Eradication of A. saligna
Benefits
Use value (US$)
Annual number of visitors
Total economic value (US$)
WTP of visitors at the nature reserve
2.85
200,000
570,000
Cost
Treatment
Total cost (US$)
Net benefit (US$)
A
401,556
168,444
B
389,556
180,444
C
331,111
238,889
D
223,333
346,667
E
195,333
374,667
Control of A. saligna
Benefits
Use value (US$)
Number of visitors
Net benefit (US$)
WTP of visitors at the nature reserve
2.25
200,000
450,000
Annualized value (20 years, 5 %)
35,708
Annual cost
Treatment
Annual cost (US$)
Annual net benefit (US$)
A
40,151
-4,443
B
38,962
-3,254
C
33,167
2,541
D
22,333
13,375
E
19,540
16,168
17 The Value of Coastal Sand Dunes
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