Chapter 3: Conceptual Foundations of Cost-Benefit Analysis Flashcards
Pareto efficiency
An allocation of goods is Pareto efficient if no alternative allocation can make at least one person better off without making anyone else worse off.
Pareto improvement
Anything that is pareto efficient in comparison with the status quo (grey triangle inside the pareto frontier)
Willingness to pay (WTP)
WTP is the maximum amount that an individual or an organization is willing to pay (or to receive) to get something (product, policy, etc.)
Opportunity Cost
The dollar value of inputs required to implement policies. The opportunity cost of an input is its value in its best alternative use
Potential Pareto efficiency rule
If all policies are independent, the decision maker should adopt all policies with positive net benefits.
If policies are dependent(policies interfere each other), the decision maker should adopt the combination of policies that maximizes net benefits.
Maximization of the net benefits rule
The effect of combining projects should also be taken into account. Interactions between projects can affect the joint net benefits (net benefit = benefits -cost).
Willingness to pay rule
If all impacts are valued in term of WTP and all required inputs in terms of opportunity costs then the sign of net benefits indicates if there is room for Pareto improvement.
3 Major limitations from WTP
- Theoretical limitation of WTP as basis for social order.
- Dependence of WTP on the distribution of Wealth.
- Dependence of net benefits on assumptions about standing.
Theoretical limitation of WTP as basis for social order
It is easy to rank the preferences of an individual for different projects. But, it is not as easy when we aggregate those rankings and there is a tie, who gets preference?
Dependence of WTP on the distribution of wealth
The WTP of a person depends on his/her current level of wealth.
Dependence of net benefits on assumptions about standing
The standing matter a lot because it determines which WTP should be counted in the CBA. ie Jurisdictional membership ( include legal non-citizens?, illegal aliens?) ie. Social unacceptable preferences (criminals) ie. future generations