Valuation and weighting

Question 1

Defenition weighting

Answer 1

Weighting can be done in monetary terms or value judgment

- used in LCA

Question 2

Defenition Valuation

Answer 2

Valuation in monetary terms and used as relative weights or absolute values
- used in CBA

Question 3

What are weighting and valuation used for?

Answer 3

They are used for comparing and expressing what is most important

Can communicate and legitimate a study

Question 4

Different weighting methods

Answer 4

• Different types of economic values - indirect use values vs non-use values
• Market prices - current level of supply and demand
• Willingness-to-pay
• the suitable method depends on purpose of study

Question 5

What are the use categories

Answer 5

Inventory parameter (for substances)
Midpoint effects (category)
Aggregated effect (environmental footprint)

Question 6

Overall how to assess?

Answer 6

1. expert panel
2. relating to env standards
3. Monetarisation - cost to society for damages caused/for avoiding damages