in patients with low or moderate probability of clots in the deep veins of the leg a negative d dimer result generally rules out dvt some patients with blood clots will be false negatives
However, an analysis of the. the benefits of both a bachelorâs degree and an associateâs degree. still tend to outweigh the costs, with both degrees earning a. return of about 15 percent over the past decade. The return has. remained high in spite of rising tuition and falling earnings.
Note that simple benefit-cost ratio is insensitive to the magnitude of net benefits and therefore may favor projects with small costs and benefits over those with higher net benefits. (This problem can be eliminated by the use of the incremental benefit-cost ratio or the net present value.)