> The other approaches mentioned above tend to make the tradeoff the other way--the consumer pays marginal cost of copying, but less art gets produced than consumers would like.
This is what proponents of IP claim. Many even think it is so obvious that there is no need for evidence, but anyway, I'd be keen to see some evidence for the claim.
I can think of a handful of immaterial goods that are not under IP (e.g food recipes and financial innovations). What is common on those is that I am quite happy with the amount available of those immaterial goods (what comes to financial innovation, one might argue that there have been a bit too much of that at some point of our history)
This is what proponents of IP claim. Many even think it is so obvious that there is no need for evidence, but anyway, I'd be keen to see some evidence for the claim.
I can think of a handful of immaterial goods that are not under IP (e.g food recipes and financial innovations). What is common on those is that I am quite happy with the amount available of those immaterial goods (what comes to financial innovation, one might argue that there have been a bit too much of that at some point of our history)