Adam and Eve live on two sides of the Garden of Eden, a small suburban development. After hey move in, an old PCB dump is discovered in between their houses. If X total tons of PCB's are removed from the dump, the two have a true willingness to pay (WTP) to finance a clean-up qual to: ADAM's WTP = 10 - X EVE's WTP = 6 - X . Adam's WTP is higher than Eve's. Does this necessarily imply that Eve is less concerned about xposure to PCB's than Adam? Why or why not