نوع مقاله : مقاله پژوهشی
نویسنده
دانشجوی دکترا، گروه اقتصاد، دانشکده مدیریت و اقتصاد، دانشگاه صنعتی شریف، تهران، ایران.
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسنده [English]
In recent years, the rapid growth of the cryptocurrency market worldwide has laid the groundwork for the expanding role of these digital assets in the global economy. Cryptocurrencies such as Bitcoin, in addition to serving functions like a store of value, investment, and speculation, can also act as a payment instrument alongside official currencies or even as a substitute for them. Given the neglect of the payment function of cryptocurrencies in the research literature, this study focuses on Bitcoin to examine its short-run and long-run effects on the exchange rate within the framework of a complementary or substitute approach. Based on the research hypothesis, given that Bitcoin is not recognized as legal tender in Iran, its effect on the exchange rate is expected to be merely short-term and unstable. To test this hypothesis, the Autoregressive Distributed Lag (ARDL) method and monthly data have been employed. The findings indicate that the Bitcoin price at the fourth lag has a positive and significant effect on the exchange rate, such that a one percent increase in the Bitcoin price leads to a four percent rise in the exchange rate after four periods. However, no significant long-run relationship was observed.
These results suggest that although Bitcoin does not play a lasting role in determining the exchange rate under normal circumstances, it can be considered by policymakers as a complementary instrument in international payments and for enhancing economic resilience in the context of external pressures such as sanctions.
کلیدواژهها [English]
Baumöhl, E. (2019). Are cryptocurrencies connected to forex? A quantile cross-spectral approach. Finance Research Letters, 29, 363-372.
Baur, D. G., & Dimpfl, T. (2021). The volatility of Bitcoin and its role as a medium of exchange and a store of value. Empirical Economics, 61, 2663–2683.
Baur, D. G., Hong, K., & Lee, A. D. (2018). Bitcoin: medium of exchange or speculative assets? Journal of International Financial Markets, Institutions and Money, 54, 177-189.
Breusch, T. S., & Pagan, A. R. (1979). A simple test for heteroscedasticity and random coefficient variation. Econometrica: Econometrica, 1287-1294.
Catalini, C., & Gans, J. S. (2016). Some simple economics of the blockchain. MIT Sloan Research Paper No. 5191. https://doi.org/10.1145/3359552.
Cheah, E. T., & Fry, J. (2015). Speculative bubbles in Bitcoin markets? An empirical investigation into the fundamental value of Bitcoin. Economics Letters, 130, 32-36.
Corelli, A. (2018). Cryptocurrencies and exchange rates: A relationship and causality analysis. Risks, 6(4), 111.
Elsayed, A. H., Gozgor, G., & Lau, C. K. M. (2022). Causality and dynamic spillovers among cryptocurrencies and currency markets. International Journal of Finance & Economics, 27(2), 2026-2040.
Goodhart, C. A. E. (1998). The two concepts of money: Implications for the analysis of optimal currency areas. European Journal of Political Economy, 14(3), 407-432.
Hajji, M., Ng, A. W., & Shehadeh, M. (2021). Bitcoin in the economics and finance literature: A survey. Journal of Economic Surveys, 35(5), 1485-1517.
Krugman, P. R., & Obstfeld, M. (2009). International economics: Theory and policy (8th ed.). Pearson Education.
Kurka, J. (2019). Do cryptocurrencies and traditional asset classes influence each other? Finance Research Letters, 31, 38-46.
Jarque, C. M., & Bera, A. K. (1980). Efficient tests for normality, homoscedasticity and serial independence of regression residuals. Economics Letters, 6(3), 255–259.
Ljung, G. M., & Box, G. E. P. (1978). On a measure of lack of fit in time series models. Biometrika, 65(2), 297–303.
Mishkin, F. S. (2016). The economics of money, banking, and financial markets (11th ed.). Pearson Education.
Mokni, K., & Ajmi, A. N. (2021). Cryptocurrencies vs. US dollar: Evidence from causality in quantiles analysis. Economic Analysis and Policy, 69, 238-252.
Nakamoto, S. (2008). Bitcoin: A peer-to-peer electronic cash system. Retrieved from https://bitcoin.org/bitcoin.pdf.
Obstfeld, M., & Rogoff, K. (1996). Foundations of international macroeconomics. Cambridge, MA: MIT Press.
Rey, H. (2015). Dilemma not trilemma: The global financial cycle and monetary policy independence. (NBER Working Paper No. 21162). Cambridge, MA: National Bureau of Economic Research.
Palazzi, R. B., Júnior, G. D. S. R., & Klotzle, M. C. (2021). The dynamic relationship between Bitcoin and the foreign exchange market: A nonlinear approach to test causality between bitcoin and currencies. Finance Research Letters, 42, 101893.
Pesaran, M. H., Shin, Y., & Smith, R. J. (2001). Bounds testing approaches to the analysis of level relationships. Journal of Applied Econometrics, 16(3), 289-326.
Raza, S. A., Ahmed, M., & Aloui, C. (2022). On the asymmetrical connectedness between cryptocurrencies and foreign exchange markets: Evidence from the nonparametric quantile on quantile approach. Research in International Business and Finance, 61, 101627.
Selgin, G. (2015). Synthetic commodity money. Journal of Financial Stability, 17, 92-99.
Tobin, J. (1969). A general equilibrium approach to monetary theory. Journal of Money, Credit and Banking, 1(1), 15-29.
Urquhart, A., & Zhang, H. (2019). Is Bitcoin a hedge or safe haven for currencies? An intraday analysis. International Review of Financial Analysis, 63, 49-57.