Z:gnu-www-ja-danger-of-software-patents--3c574a-There isn't any. It's almost/en

There isn't any. It's almost impossible to measure these things. Actually, I shouldn't say there isn't any. There is a little. It's very hard to measure the effect of the patent system, because you're comparing the real world with a counterfactual world, and there's no way to be sure what would happen.