valuation of goods

The wetland ecosystem services have public goods characteristic and bring the external economy, so we can use contingent valuation method ( CVM) turn the value of ecosystem services into the willingness to pay ( WTP) to assess its functional value.

由于湿地生态系统服务具有公共物品的特征和外部经济性，可以利用条件估值法（CVM）将生态系统服务功能价值转化为最大支付意愿（WTP），并最终确定生态系统服务功能价值。

Identification, property valuation or offer more potential value of the thin space, do not buy fake goods, genuine made-mail LYJ confirm current price sale price.

鉴定、估价或出价稀物更具潜值空间，不买假品，真品时价发邮箱LYJ确认定价出售。

convention on the valuation of goods for customs purposes (brussels convention)

（二）布鲁塞尔海关估价公约