31.   He was also unable to part with some items of perhaps little economic value, for the same heart-plucking reasons.

32.   How does one measure the economic value of the education of U.S. citizens?

33.   However, environmentalists and the Clinton administration insist that any board be charged with placing conservation values over economic values in running the ranch as a park.

34.   However, environmentalists and the Clinton administration insist that any management board be charged with placing conservation values over economic values in running the ranch as a park.

35.   In fact, enriched uranium has economic value as reactor fuel, whereas converting plutonium appears to be a money-losing proposition.

36.   It has been contended often in this corner of the newsroom that big-league sports has incalculable economic value because it showcases the community.

37.   It requires a re-rooting in nature, a forsaking of the hope that we can save wild or even open land on the basis of its economic value.

38.   It will earmark funding for a three-part cleanup of the Salton Sea to maintain its fishery and wildlife values and enhance its economic value.

39.   Large carriers provide the best overall return in terms of warfighting capability, sustainability, survivability and overall economic value.

40.   Most of this, they said, lies outside formal markets and is therefore not reflected in market prices, the customary gauge of economic value.