WWW.UNEPSCS.ORG
REVERSING ENVIRONMENTAL DEGRADATION TRENDS IN THE SOUTH CHINA SEA AND GULF OF THAILAND
 WWW.UNEPSCS.ORG
• Problem: ‘Farm gate’ prices for environmental goods vary   within countries reflecting both the local supply
   and the demand • Solution: Weight individual values according to the stock
   or area
•
•Weighted Mean National Value
•
• The summation of each price (value) multiplied by the stock to which it relates; divided by the total stock for which prices were available in the country
REVERSING ENVIRONMENTAL DEGRADATION TRENDS IN THE SOUTH CHINA SEA AND GULF OF THAILAND
 WWW.UNEPSCS.ORG