From the Mises blog; archived comments below.
Update: See Classical Liberals, Libertarians, Anarchists and Others on Intellectual Property and this facebook post: 
“Protection from entrepreneurial competition does not provide any spur to entrepreneurial discovery.”
– Israel Kirzner 👀
— Foundation for Economic Education (@feeonline) August 14, 2025
“Protection from entrepreneurial competition does not provide any spur to entrepreneurial discovery.” Kirzner, Discovery and the Capitalist Process (1985), p. 38
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I’ve noted before the views of Austrians such as Mises, Hayek, and Rothbard on IP.1 They would be placed in phase 3 of The Four Historical Phases of IP Abolitionism.
In my post Mossoff: Why Should Business Leaders Care About Intellectual Property (Objectivism), I noted Sheldon Richman had relayed to me an interesting exchange between Roy Cordato and the pro-IP Adam Mossoff:
Mossoff recently appeared on an IP panel at the recent APEE annual meeting, along with several anti-IP libertarians, including Sheldon Richman (I believe Roderick Long was present too but I am not sure if he was on that panel). The panel also had Ed Lopez who offered efficiency arguments against IP but was not much part of the debate. Richman related to me that at one point, Roy Cordato asked Mossoff if IP would protect a Kirznerian entrepreneur who has a novel insight about the gap between the cost of inputs and the price of an output. At first Mossoff said he didn’t know what a Kirznerian entrepreneur was (Cordato explained), then he didn’t get the point (thinking Cordato meant the actual product rather than the idea about the gap between costs and price), then ended up saying that the idea would be patentable–which means the law would stop market equilibration, since others could not jump in and imitate the entrepreneur.
This got me curious about Cordato. Sure enough, in his 1992 book Welfare Economics and Externalities in an Open Ended Universe, he has several passages indicating a skepticism of IP. On pp. 21-22, he discusses the difference between Mises and Rothbard on patent and copyright; see also p. 36 (“If an external benefit “problem” arises that is the result of ambiguously defined entitlements, then some form of public policy which focuses on establishing those rights may be advocated. The sole example of this in the literature is Mises’ discussion patent and copyright laws”). On p. 80:
Mises has suggested, though, that an external benefit “problem” might arise where intellectual property rights are not clearly defined; this is the issue of patents and copyrights (see chapter 1). Mises clearly focuses on an issue of property rights that may have normative implications for catallactic efficiency. Ambiguities with respect to entitlements in the area of inventions and the generation of ideas can lead to interpersonal conflicts in the plan-formulation and goal-seeking process. As noted, to efficiently make plans, individuals need to know that their rights to use the relevant property will be upheld at pertinent points in the future. The issue of patents and copyrights may be an application of this principle.
On the other hand, this is clearly an area where the limitations of economic analysis are exposed and a theory of justice may need to be invoked. Consistent with O’Driscoll and Rizzo’s point, this is a case where certain ethical questions need to be resolved before economic analysis can be applied. The question of whether property rights can legitimately be applied to ideas, particularly given that ideas and inventions can be and often are independently discovered, has both practical and ethical implications. In such cases, the granting of property rights to a discovery itself denies the rights of others who have made or will make the same discovery independently (Rothbard 1970, p. 71). This denial of rights would clearly interfere with plans that were made by the independent discoverer and may consequently have a negative impact on the accuracy of some market prices. This suggests that the granting of property rights to ideas would likely lead to its own problems with respect to catallactic efficiency.6 Mises’s brief analysis, providing neither a theory of justice nor efficiency, does not give us a satisfactory approach to this issue. [continue reading…]
- On Hayek: see Tucker, “Misesian vs. Marxian vs. IP Views of Innovation“; Tucker, “Hayek on Patents and Copyrights” (archived comments). On Mises, see Human Action 3rd rev. ed. Chicago: Henry Regnery (1966), chap. 23, section 6, pp. 661–62; see also pp. 128, 364; see also Kinsella, “Mises on Intellectual Property“. Rothbard: Knowledge, True and False and Man, Economy, and State and Power and Market, Scholars Edition, pp. liv, 745-54, 1133-38, 1181-86. [↩]

On the other hand, this is clearly an area where the limitations of economic analysis are exposed and a theory of justice may need to be invoked. Consistent with O’Driscoll and Rizzo’s point, this is a case where certain ethical questions need to be resolved before economic analysis can be applied. The question of whether property rights can legitimately be applied to ideas, particularly given that ideas and inventions can be and often are independently discovered, has both practical and ethical implications. In such cases, the granting of property rights to a discovery itself denies the rights of others who have made or will make the same discovery independently (Rothbard 1970, p. 71). This denial of rights would clearly interfere with plans that were made by the independent discoverer and may consequently have a negative impact on the accuracy of some market prices. This suggests that the granting of property rights to ideas would likely lead to its own problems with respect to catallactic efficiency.6 Mises’s brief analysis, providing neither a theory of justice nor efficiency, does not give us a satisfactory approach to this issue. 


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