It could also be of marginal value".
Web ads, however, are only of marginal value.
It's the heaviest of recyclables but has always been of marginal value as a commodity.
That would dramatically improve the economics of recycling items of marginal value, such as yogurt pots.
Rather, they opted for cheap, multiple-choice tests of marginal value.
Complications can arise from hospital stays, medications, procedures, and tests, and when these things are of marginal value the harm can be greater than the benefits.
Complications can arise from hospital stays, drugs, procedures, and tests, and when they are of marginal value, the harm can outweigh the benefit.
It is a heartening sign that alert and aggressive physicians can potentially play a major role in helping to reduce the escalating costs of health care for treatments of marginal value.
Against some of the most significant potential threats — a China in ascendancy, for example, or a North Korea or Iran with nuclear weapons — drones are likely to be of marginal value.
"The theory is that physicians actually know they can sell patient services of marginal value," said Uwe E. Reinhardt, an economics professor at Princeton (and regular contributor to Economix).
