A net total of 523,500 acres of swamps and tidal marshes had been lost, but the Fish and Wildlife Service measured gains of 715,300 acres of shallow-water wetlands, or ponds.
While measuring gains from year to year is a simple idea, the actual analysis is complex because it requires scores for each Tennessee student for each year and subject, linked to a specific teacher for each test.
Davis has deliberated the phenomenon of productivity, measurement of productivity, distribution of productivity gains, and how to measure such gains.
Sarkar, S. (2004), "Non-Tariff measures in services measuring gains from movement of skilled personnel in quantifying Non Tariff Barriers to Trade" in P. Dee, M. Ferrantino (eds.)
Hearing the work not as Mr. Glass's latest but as a revived oldie, a listener could take in the music without measuring gains and innovations or worrying about whether the piece moved sufficiently beyond its predecessors.
Measuring gains in productivity from using the Internet has proved elusive, as it has for other e-commerce businesses.
There are provisions that could allow a rich country to gain credits for investing in emissions-reducing projects in poorer ones, but the rules remain mired in disputes over how to measure gains and what kinds of projects should qualify.
The battle of the barriers will be judged by measuring sand losses or gains in each section.
For several months, senior officials of the eight leading nations have thrashed out compromises but are still debating how to measure gains in African policy making.
His armies made careful, measured gains over time, rarely exposing themselves to excessive risks, but nevertheless advancing inexorably towards their objectives.