Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 23 references without a DOI — listed, not checked
no DOI — not checkedBenson, B. (1990). The Enterprise of law: Justice without the state. San Francisco: Pacific Research Institute for Public Policy.
no DOI — not checkedBuchanan, J. (1975). The limits of liberty: Between anarchy and leviathan. Indianapolis: Liberty Fund.
no DOI — not checkedCoyne, C., & Lucas, D. (2016). Economists have no excuse: A critical review of national defense in economics textbooks. The Journal of Private Enterprise, 31(4), 65–83.
no DOI — not checkedDeAngelo, G. & Smith, T. (2015). Private security and the provision of international public goods. Available at SSRN: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2621850 .
no DOI — not checkedFriedman, D. (2014). The machinery of freedom: Guide to a radical capitalism. Chicago: Open Court Publishing Company (Original work published 1973).
no DOI — not checkedFriedman, M. (1979). Milton Friedman on Donahue (Full Segment). Filmed 1979. YouTube video, 45:11. Posted November 13, 2012. https://www.youtube.com/watch?v=IYNSrQLtjKI .
no DOI — not checkedHummel, J. R. (2001). The will to be free: The role of ideology in nation. The Independent Review, 4, 523–537.
no DOI — not checkedJervis, R. (2016, September 22). 3% of Americans own half the country’s 265 million guns. USA Today, http://www.usatoday.com/story/news/2016/09/22/study-guns-owners-violence/90858752/
no DOI — not checkedKessler, A. (2012, March 7). Stuck in arbitration (p. A27). New York Times.
no DOI — not checkedKramer, A. (2016, October 31). Spooked by Russia, tiny Estonia trains a nation of insurgents. New York Times. https://www.nytimes.com/2016/11/01/world/europe/spooked-by-russia-tiny-estonia-trains-a-nation-of-insurgents.html?_r=0 .
no DOI — not checkedLeeson, P., Coyne, C., & Duncan, T. (2014). A note on the market provision of national defense. The Journal of Private Enterprise, 29(2), 51–55.
no DOI — not checkedvon Mises, L. (2006). Economic policy: Thoughts for today and tomorrow. Chicago: Regnery/Gateway Inc. Reprint. Auburn: The Ludwig von Mises Institute. Citations refer to the Ludwig von Mises Institute edition (Original work published 1979).
no DOI — not checkedNozick, R. (1974). Anarchy, state, and utopia. New York: Basic Books.
no DOI — not checkedRand, A. (1964). The virtue of selfishness. New York: Signet.
no DOI — not checkedRothbard, M. (2006). For a new liberty: The libertarian manifesto. Auburn: The Ludwig von Mises Institute (Original work published 1973).
no DOI — not checkedSpooner, L. (1867). No treason. Boston: Lysander Spooner.
no DOI — not checkedStenning, P. (2000). Police powers and accountability in a democratic society: Proceedings, reports presented to the 12th criminological colloquium. Strasbourg: Council of Europe Publishing.
no DOI — not checkedTullock, G. (1974). The social dilemma: The economics of war and revolution. Blacksburg: Center for Public Choice.
no DOI — not checkedU.S. Bureau of Labor Statistics, Occupational outlook handbook: Arbitrators, mediators, and conciliators. (2014). Office of Occupational Statistics and Employment Projections: Washington, D.C. Retrieved from https://www.bls.gov/ooh/legal/arbitrators-mediators-and-conciliators.htm .
no DOI — not checkedU.S. Bureau of Labor Statistics, Occupational outlook handbook: Police and detectives. (2014). Office of Occupational Statistics and Employment Projections: Washington, D.C. Retrieved from https://www.bls.gov/ooh/protective-service/police-and-detectives.htm .
no DOI — not checkedU.S. Bureau of Labor Statistics, Occupational outlook handbook: Private detectives and investigators. (2014). Office of Occupational Statistics and Employment Projections: Washington, D.C. Retrieved from https://www.bls.gov/ooh/protective-service/security-guards.htm .
no DOI — not checkedU.S. Bureau of Labor Statistics, Occupational outlook handbook: Security guards and gaming surveillance officers. (2014). Office of Occupational Statistics and Employment Projections: Washington, D.C. Retrieved from https://www.bls.gov/ooh/protective-service/security-guards.htm .
no DOI — not checkedUrbina, I. (2009, October 30). Debate follows bills to remove clotheslines bans (p. A23). New York Times.
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