With the advent of state IP legislation, the state has interrupted and preempted whatever other customs, business arrangements, contractual regimes and practices, and so on, that would no doubt have arisen in its absence. So it’s natural for those new to the anti-IP idea to be a bit nervous about replacing the current flawed IP system with … a vacuum. It’s natural for them to wonder, well what would occur in its absence? As I noted, the reason we are not sure is the state has snuffed them out. This is similar to the FCC which preempted and monopolized the field of property rights in airwaves just as they were starting to develop in the common law; now people are used to the idea of the state regulating and parceling out airwave or spectrum rights and might imagine there would be chaos if the FCC were abolished (for more on this see David Kelley & Roger Donway‘s 1985 monograph Laissez Parler: Freedom in the Electronic Media, as discussed in my post Why Airwaves (Electromagnetic Spectra) Are (Arguably) Property).
So, because people are bound to ask the inevitable: we IP opponents try to come up with some predictions and solutions and answers. Thus, in the end we must agree with Hasnas:
Although I am tempted to give this response, I never do. This is because, although true, it never persuades. Instead, it is usually interpreted as an appeal for blind faith in the free market, and the failure to provide a specific explanation as to how such a market would provide legal services is interpreted as proof that it cannot. Therefore, despite the self-defeating nature of the attempt, I usually do try to suggest how a free market in law might work.