...handsomely to society, and significantly to industry, Mansfield found that in nearly one-third of the cases, "The private rate of return was so low that no firm,...hindsight, would have invested in the innovation." The return from the same innovations from society's point of view, however, was "well worthwhile."...

...return (before taxes) was about 25 percent* Third, in about 30 percent of the casea in this sample, the private rate of return was so low that no firm,...hindsight, would have invested in the innovation, but the social rate of return from the innovation was so high that, from society's point of view, the...

...handsomely to society, and significantly to industry, Mansfield found that in nearly one-third of the cases, "The private rate of return was so low that no firm,...hindsight, would have invested in the innovation." The return from the same innovations from society's point of view, however, was "well worthwhile."...

...median private rate of return was about 25 percent in about 30 percent of the cases in the sample, the private rate of return was so low that no firm...of hindsight would have invested in the innovation. I think that what you are both suggesting is that there is a public, interest in getting innovations...

...different innovations, the social rate of return exceeds the private rate, and in about 30% of the cases the private rate of return was so low that no firm,...hindsight, would have invested in the innovation, while the social rate of return from this innovation was fairly high. The gap between social and private...

...56 percent. Most important, however, was a third major finding : In about 10 percent of the cases, the private rate of return was so low that no firm...of hindsight would have invested in the innovation, but the social rate of return from the innovation was so high that, from society's point of view, the...

...be 56 percent. Most important, however, was a third major finding: In about 10 percent of the cases, the private rate of return was so low that no firm...of hindsight would have invested in the innovation, but the social rate of return from the innovation was so high that, from society's point of view, the...

...are very low but the social returns are favorable. In about 30 percent of the Innovations In Table 1. the private rate of return was so low that no firm,...hindsight, would have invested in the innovation, but the social rate of return was so high that, from society's point of view, the investment was well...

...private rate of return was about 25 percent. Third, in about 30 percent of the cases in this sample, the private rate of return was so low that no firm,...hindsight, would have invested in the innovation, but the social rate of return from the innovation was so high that, from society s point of view, the...

...private rate of return was about 25 percent. Third, In about 30 percent of the cases in this sample, the private rate of return was so low that no firm,...hindsight, would have invested in the innovation, but the social rate of return from the Innovation was so high that, from society's point of view, the...