Rothbard

It's beacuse they saw analytical distinctions between the factors (which I think are brought out most clearly in Rothbard's "Man, Economy, and State"), which make their trifurcation useful and even necessary.

Unionization's Decline, a Human Capital Story, Arnold Kling | EconLog | Library of Economics and Liberty 2009

Bryan Caplan diagnoses the logical fallacy in Rothbard's decision to ally himself with the radical left.

Unstrategic Alliances, Bryan Caplan | EconLog | Library of Economics and Liberty 2009

Of course, Rothbard is just being consistent: under his model, the state does basically nothing.

Government vs. Private Debt, Arnold Kling | EconLog | Library of Economics and Liberty 2009

Bryan Caplan diagnoses the logical fallacy in Rothbard's decision to ally himself with the radical left.

Doubt the Vote, Bryan Caplan | EconLog | Library of Economics and Liberty 2009

Rothbard is certainly another possibility; some of the items do bear hallmarks of his style, and I would be surprised if at least some of the controversial ones were not his work.

Actual Journamalism 2008

You could easily subtitle Rothbard's lectures "The Joy of Econ."

The Joy of Econ, Bryan Caplan | EconLog | Library of Economics and Liberty 2009

"We made him leave our study group," she said, referring to Rothbard's excommunication from the Collective, a discussion group of intellectuals that met weekly in her apartment.

Steve Mariotti: Remembering Ayn Rand Steve Mariotti 2011

The latter is run by the Ludwig von Mises Institute, which has just issued an interesting collection of unpublished Rothbard writings, edited by the Italian political scientist Roberta Modugno and titled Rothbard vs. the Philosophers.

Reason Magazine Brian Doherty 2010

How can they [radical libertarians such as Rothbard] attribute the origins of government to successful conquest and simultaneously maintain that a completely free society, without government, could prevent such conquest?

Mises Dailies 2009

Some libertarians ” such as Rothbard (1982) ” deny that such transfer is even possible, since others cannot control one's will.

Libertarianism Vallentyne, Peter 2009