Why is Bitcoin not Money? A Post-Keynesian view

Keywords: Cryptocurrencies, Modern Money Theory, Post-Keynesian Theory

Abstract

Bitcoin got increasing popularity and was considered by the public as a great investment due to huge overvaluation in 2017. In parallel, economists and high-level technicians started to advocate the use of bitcoin and other cryptographic currencies as an alternative to national currencies. However, bitcoin is far from being considered as money, so it is hard for a monetary and payment system to emerge based on these technologies. This paper, apart from briefly presenting the Bitcoin System, shows why bitcoin is not money in the light of the Keynesian theory. We use Keynesian essential properties of Money and Modern Money Theory to define money, and to show that cryptographic currencies are not money. We then go back to Keynes' theory of portfolio choice, established in Chapter 17 of the General Theory, to show what bitcoin really is: at most, bitcoin is a perfect virtual commodity, a virtual liquid speculative asset.

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Author Biography

Matheus Trotta Vianna, Federal University of Rio de Janeiro (UFRJ)

PhD candidate in Economics at the Federal University of Rio de Janeiro (UFRJ). He holds a Master's degree and a degree in Economics from the same institution. Research Associate of the Economic Dynamics Group of IE-UFRJ and the Money and Financial System Group. He was executive coordinator and researcher at the Multidisciplinary Institute for Development and Strategy (MINDS).

References

Baek, C. and Elbeck, M. (2015) “Bitcoins as an Investment or Speculative Vehicle? A first look”. Applied Economics Letters 22(1), 30-34. https://doi.org/10.1080/13504851.2014.916379

Barber, S., Boyen, X., Shi, E., Uzun, E. (2012) “Bitter to better — how to make bitcoin a better currency”. In: Keromytis, A.D. (eds) Financial cryptography and data security. FC 2012. Lecture Notes in Computer Science 7397. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32946-3_29

Bjerg, O. (2016) “How is Bitcoin Money?”. Theory, Culture and Society 33(1), p. 53-72. https://doi.org/10.1177/0263276415619015

Carvalho, F.C. (1992) “Mr. Keynes and the Post Keynesians: principles of macroeconomics for a monetary production economy”. Edward Elgar: Aldershot.

Carvalho, F.C. (2015) “Liquidity preference and monetary economies”. Routledge

Clower, R. (1965) “The Keynesian counter-revolution: A theoretical appraisal”, In: Hahn, F. and Brechling, F. (eds), The theory of interest rates, p. 103–125, London: Macmillan.

Davidson, P. (1972) Money and the real world. The Economic Journal, 82(325), p. 101-115. https://doi.org/10.2307/2230209

Davidson, P. (2002) “Financial markets, money and the real world”. Cheltenham UK and Northampton US: Edward Elgar

Dwyer, G. (2015) “The economics of Bitcoin and similar private digital currencies”. Journal of Financial Stability 17, p. 81-91. https://doi.org/10.1016/j.jfs.2014.11.006

Fry, J. and Cheah. E. (2015) “Speculative bubbles in Bitcoin markets? An empirical investigation into the fundamental value of Bitcoin”. Economic Letters 130, p. 32-36. https://doi.org/10.1016/j.econlet.2015.02.029

Keynes, J. M. (1921) “A treatise on probability”. Macmillan and Company, limited.

Keynes, J.M. (1936 [1996]) “The general theory of employment, interest and money”. São Paulo: Nova Cultural.

Lerner, A. (1947) “Money as a Creature of the State.” American Economic Review 37, p. 312–317. Available at: https://www.jstor.org/stable/1821139

Minsky, H.P. (1975). “John Maynard Keynes.” Macmillan Press: London

Minsky, H.P. (1986). “Stabilizing an unstable economy.” New Haven: Yale University Press.

Nakamoto, S. (2008). “Bitcoin: A peer-to-peer electronic cash system”. Available at: https://bitcoin.org/bitcoin.pdf

Possas, M. (2015). “An interpretation of controversial points in Keynes's General Theory”. Brazilian Keynesian Review 1(1), p. 71-95. https://doi.org/10.33834/bkr.v1i1.31

Tymoigne, E. (2013). “The fair price of a Bitcoin is zero”. New Economic Perspectives Blog, December 2. Available at: http://neweconomicperspectives.org/2013/12/fair-price-bitcoin-zero.html

Wray, L. R. (1998). “Understanding modern money: The key to full employment and price stability”. Edward Elgar

Wray, L. R. (2014). “From the state theory of money to modern money theory: An alternative to economic orthodoxy”. Levy Economics Institute of Bard College Working Paper Series, WP. No. 792. https://dx.doi.org/10.2139/ssrn.2407711

Wray, L. R. (2015). “Modern money theory: A primer on macroeconomics for sovereign monetary systems”. Palgrave Macmilan, 1st Ed.

Yermack, D (2015). “Is Bitcoin a real currency? An economic appraisal”. In: Chuen, D. (ed) Handbook of digital currency, p. 31-43, Academic Press. https://doi.org/10.1016/B978-0-12-802117-0.00002-3.

Published
2021-05-29
How to Cite
Vianna, M. T. (2021). Why is Bitcoin not Money? A Post-Keynesian view. Brazilian Keynesian Review, 6(2), 215-240. https://doi.org/10.33834/bkr.v6i2.211
Section
Articles