Coins have played a crucial role in every economy. So close is their relationship that almost every economy has introduced at least one new denomination of coin to add it to its original set. This raises the question, when does an economy introduce a new denomination of coin ? To answer the question, this paper studied a diverse set of 10 different economies over the period from 1975 – 2019. It inferred that sticky inflation compels an economy to introduce a new denomination; a low denominated but high velocity banknote is coined as financial prudence, and durability makes the coin a better alternative to fund routine transactions at the bottom of the pyramid. Even when coins are absent in the economy, had coins existed, sticky inflation would have forced conversion of lower banknote denomination to a coin.

1. Bank for International Settlements. (n.d.). Statistics. Retrieved from <a href=https://www.bis.org/ target="_blank">https://www.bis.org/</a>
2. Bank of England. (n.d.). Statistics. Retrieved from <a href=https://www.bankofengland.co.uk/statistics target="_blank">https://www.bankofengland.co.uk/statistics</a>
3. CBN to introduce N5000, N2000 notes ; N50, N20, N10 coins. (2012, May 13). Information Nigeria. Retrieved from <a href=http://leadership.ng/nga/articles/24507/2012/05/13/cbn_introduce_n5000_n200 s-_n50_n20_n10_coins.html target="_blank">http://leadership.ng/nga/articles/24507/2012/05/13/cbn_introduce_n5000_n200 s-_n50_n20_n10_coins.html</a>
4. European Central Bank. (n.d.). European Central Bank data. Retrieved from <a href=https://www.ecb.europa.eu/home/html/index.en.html target="_blank">https://www.ecb.europa.eu/home/html/index.en.html</a>
5. Govt announces Rs 20 coin ; new one, two, five and ten rupees coins also in pipeline. (2019, March 7). The Economic Times. Retrieved from <a href=https://economictimes.indiatimes.com/news/economy/policy/govt-issues-new-rs-20-coin-here-are-the-details/articleshow/68299220.cms?from=mdr target="_blank">https://economictimes.indiatimes.com/news/economy/policy/govt-issues-new-rs-20-coin-here-are-the-details/articleshow/68299220.cms?from=mdr</a>
6. He, L. (2018). Hyperinflation: A world history. Abingdon, United Kingdom : Routledge.
7. Karfakis, C. (2003). Exchange rate determination during hyperinflation : The case of the Romanian lei. Applied Financial Economics, 13(6), 473–476. <a href=https://dx.doi.org/10.1080/0960310022000020870 target="_blank">https://dx.doi.org/10.1080/0960310022000020870</a>
8. Kim, K. S. (1991). The Korean miracle (1962–1980) revisited : Myths and realities in strategy and development. Kellogg Institute. Retrieved from <a href=https://kellogg.nd.edu/sites/default/files/old_files/documents/166_0.pdf target="_blank">https://kellogg.nd.edu/sites/default/files/old_files/documents/166_0.pdf</a>
9. Mander, B. (2017, June 20). How did Argentina pull off a 100-year bond sale ? Financial Times. Retrieved from <a href=https://www.ft.com/content/5ac33abc-551b-11e7-9fed-c19e2700005f target="_blank">https://www.ft.com/content/5ac33abc-551b-11e7-9fed-c19e2700005f</a>
10. Norges Bank. (2011). 50-øre coin to be withdrawn [pre - release]. Retrieved from <a href=https://www.norges-bank.no/en/Published/Press-releases/2011/Press-release-19-March-2011 target="_blank">https://www.norges-bank.no/en/Published/Press-releases/2011/Press-release-19-March-2011/</a>
11. Ray, A. (2018, October 8). Minting of Rs 10 coins cut by half due to non-availability of raw material. The Economic Times. Retrieved from <a href=https://economictimes.indiatimes.com/industry/banking/finance/banking/mints-inability-to-get-blocks-forces-rbi-to-halve-rs-10-coin-demand/articleshow/66111368.cms target="_blank">https://economictimes.indiatimes.com/industry/banking/finance/banking/mints-inability-to-get-blocks-forces-rbi-to-halve-rs-10-coin-demand/articleshow/66111368.cms</a>
12. Selcuk, F., & Ertugrul, A. (2001). A brief account of the Turkish economy : 1980–2000. <a href=https://dx.doi.org/10.2139/ssrn.262957 target="_blank">https://dx.doi.org/10.2139/ssrn.262957</a>
13. Sveriges Riksbank. (2016). New banknotes and coins. Retrieved from <a href=https://www.riksbank.se/en-gb/about-the-riksbank/history/2000-2018/new-banknotes-and-coins/ target="_blank">https://www.riksbank.se/en-gb/about-the-riksbank/history/2000-2018/new-banknotes-and-coins/</a>
14. The National Institute of Statistics and Censuses. (n.d.). Statistics. Retrieved from <a href=https://www.indec.gob.ar/indec/web/Institucional-Indec-QuienesSomosEng target="_blank">https://www.indec.gob.ar/indec/web/Institucional-Indec-QuienesSomosEng</a>
15. The Royal Mint. (n.d.). One pound coin. Retrieved from <a href=https://www.royalmint.com/discover/uk-coins/coin-design-and-specifications/one-pound-coin/ target="_blank">https://www.royalmint.com/discover/uk-coins/coin-design-and-specifications/one-pound-coin/</a>
16. The World Bank. (n.d.). World Bank open data. Retrieved from <a href=https://data.worldbank.org/ target="_blank">https://data.worldbank.org/</a>