Some Bad and Better Reasons why Time Preference Must Always be Positive
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Igor Wysocki
Abstract
The purpose of the present paper is to ground the alleged universal law of (positive) time preference. Thus, we take the said positivity of individual time preference rates for granted. However, we also take pains to show that some other time preference rates (even negative ones) are conceivable only providing that ceteris paribus clause is not satisfied. All in all, we cannot but admit that the intuition standing behind the apparently necessary positivity of time-preference rates is quite robust. However, little effort has been made to justify it. For example, in Austrian economics, it is said that positive rate of time preference is somehow implied in the concept of human action. Yet, no demonstration to that effect is forthcoming. In this essay, we are trying to approximate what could serve as a best reason to believe that individual time preference rates are indeed positive. We first consider whether a phenomenon of social interest rates is able to ground the positivity of time preference. Having rejected this apparent solution as circular, we analyse whether a case can be made against non-positive rates of time preference as unjustified under any set of relevant beliefs. This attempt is also rejected, as there seems to exist a relevant belief under which a rate of time preference can rationally be zero. Finally, we appeal to the Parfitian reductionist view on personal identity as allegedly capturing necessarily positive rates of time preference. Here we note the crucial fact that psychological connectedness (something at least partially constitutive of personal identity) between person P at some time and the same person at some other time diminishes as the interval between these two times increases. Finally, this very fact appears to neatly explain the positivity of time preference.
References
Bernheim, Douglas. 1984. “Rationalizable Strategic Behavior.” Econometrica 52: 1007–28. https://doi.org/10.2307/1911196.Search in Google Scholar
Böhm-Bawerk, Eugen von. [1884] 1959. History and Critique of Interest Theories. Spring Mills, Penn: Libertarian Press.Search in Google Scholar
Casari, Marco, and Davide Dragone. 2011. “On Negative Time Preferences.” Economic Letters 111 (1): 37–9. https://doi.org/10.1016/j.econlet.2010.12.010.Search in Google Scholar
Fetter, Frank. 1914. “Interest Theories, Old and New.” The American Economic Review 4 (1): 68–92.Search in Google Scholar
Fisher, Irving. 1930. Theory of Interest, as Determined by Impatience to Spend Income and Opportunity to Invest it. New York: Macmillan.Search in Google Scholar
Garrison, Roger. 1979. “In Defense of the Misesian Theory of Interest.” Journal of Libertarian Studies 3 (2): 141–50.Search in Google Scholar
Gintis, Herbert. 2009. The Bounds of Reason: Game Theory and the Unification of the Behavioral Sciences. New Jersey: Princeton University Press.Search in Google Scholar
Herbener, Jeffrey. 2011a. “Introduction.” In The Pure-Time Preference Theory of Interest, edited by Jeffrey M. Herbener, 11–58. Auburn: Ludwig von Mises Institute.Search in Google Scholar
Herbener, J. M., ed. 2011b. “The Pure Time-Preference Theory of Interest: An Attempt at Clarification.” In The Meaning of Ludwig von Mises: Contributions in Economics, Sociology, Epistemology, and Political Philosophy, 166–92. Auburn: Ludwig von Mises Institute.Search in Google Scholar
Hülsmann, Jörg G. 2002. “A Theory of Interest.” Quarterly Journal of Austrian Economics 5 (4): 77–110. https://doi.org/10.1007/s12113-002-1007-6.Search in Google Scholar
Kirzner, Israel. 1976. The Economic Point of View. Kansas City: Sheed Andrews McMeel.Search in Google Scholar
Kirzner, Israel. 1993. “The Pure Time-Preference Theory of Interest: An Attempt at Clarification.” In The Meaning of Ludwig von Mises: Contributions in Economics, Sociology, Epistemology, and Political Philosophy, edited by Jeffrey M. Herbener, 166–92. Auburn: Ludwig von Mises Institute.10.1007/978-94-011-2176-7_7Search in Google Scholar
Knight, Frank. 1944. “Diminishing Returns from Investment.” Journal of Political Economy 52 (1): 26–47.10.1086/256134Search in Google Scholar
Lawrance, Emily. 1991. “Poverty and the Rate of Time Preference: Evidence from Panel Data.” Journal of Political Economy 99 (1): 54–77. https://doi.org/10.1086/261740.Search in Google Scholar
Loewenstein, George. 1987. “Anticipation and the Valuation of Delayed Consumption.” The Economic Journal 97 (387): 666–84. https://doi.org/10.2307/2232929.Search in Google Scholar
Loewenstein, Goerge, and Drazen Prelec. 1991. “Negative Time Preference.” The American Economic Review 81 (2): 347–52.Search in Google Scholar
McMahan, Jeff. 2002. The Ethics of Killing: Problems at the Margins of Life. New York: Oxford University Press.10.1093/0195079981.001.0001Search in Google Scholar
Mises, Ludwig von. 1998. Human Action: A Treatise on Economics, The Scholar’s Edition. Auburn, AL: Ludwig von Mises Institute.Search in Google Scholar
Murphy, R. 2003. Unanticipated Intertemporal Exchange in Theories of Interest. Doctoral Dissertation. New York: New York University.Search in Google Scholar
Olson, Eric. 1997. Olson, Eric T., 1997. The Human Animal: Personal Identity Without Psychology. New York: Oxford University Press.Search in Google Scholar
Olson, Eric. 2003. “An Argument for Animalism.” In Personal Identity. Blackwell Readings in Philosophy, edited by R. Martin, and J. Barresi, 318–34. Oxford: Blackwell.10.1002/9780470998762.ch15Search in Google Scholar
Olson, Eric. 2004. “Animalism and the Corpse Problem.” Australasian Journal of Philosophy 82 (2): 265–74. https://doi.org/10.1080/713659837.Search in Google Scholar
Parfit, Derek. 1984. Reasons and Persons. Oxford: Oxford University Press.Search in Google Scholar
Potuzak, Pavel. 2016. “What can we Learn from the Böhm-Bawerkian Theory in the World of Zero Interest?” Unpublished Manuscript 1–27. http://dx.doi.org/10.2139/ssrn.2865082.10.2139/ssrn.2865082Search in Google Scholar
Potuzak, Pavel. 2017. “Zero Time Preference and Eternal Postponement of Consumption,” Unpublished Manuscript. 296–310. 10.20472/EFC.2017.007.019Search in Google Scholar
Rothbard, Murray. 2009. Man, Economy, and State, with Power and Market. Auburn, AL: Mises Institute.Search in Google Scholar
Samuelson, Paul. 1937. “A Note on Measurement of Utility.” Review of Economic Studies 4: 155–61. https://doi.org/10.2307/2967612.Search in Google Scholar
Samuelson, Paul. 1982. “Schumpeter as an Economic Theorist.” In Schumpeterian Economics, edited by H. Frisch. New York: Praeger.Search in Google Scholar
Searle, John. 1979. “What is an Intentional State?” Mind 88 (349): 74–92. https://doi.org/10.1093/mind/lxxxviii.1.74.Search in Google Scholar
Searle, John. 1983. Intentionality: An Essay in the Philosophy of Mind. Cambridge: Cambridge University Press.10.1017/CBO9781139173452Search in Google Scholar
Shoemaker, David. 2007. “Personal Identity and Practical Concerns.” Mind 116 (462): 317–57. https://doi.org/10.1093/mind/fzm317.Search in Google Scholar
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