The Monetary Transmission Effects of Central Bank Digital Currency (CBDC) in Hungary: A Simplified DSGE Simulation

Authors

  • Ferenc Gyüre Conforium Edge Ltd.

DOI:

https://doi.org/10.35551/PFQ_2026_2_4

Keywords:

central bank digital currency, monetary transmission, dynamic stochastic general equilibrium model, bank intermediation, financial stability, E42, E52, E58, E44, G21

Abstract

The paper examines how the introduction of a moderate, interest-neutral (policy-rate-remunerated) central bank digital currency (CBDC) modifies the short-run transmission of monetary policy in Hungary’s 2025 macroeconomic environment. It extends a baseline New Keynesian DSGE model with a CBDC, in which household savings are split between deposits and CBDC while bank lending is tied to deposits, so deposit substitution can weaken intermediation. Following calibration, simulations and impulse responses suggest that rule-based stabilisation largely remains intact, but the responses of real variables are more muted and adjustment may be slower.

References

Adrian, T. and Mancini-Griffoli, T. (2019) The rise of digital money. IMF FinTech Notes. Washington, DC: International Monetary Fund.

Andolfatto, D. (2021) ‘Assessing the impact of central bank digital currency on private banks’, The Economic Journal, 131(634), pp. 525–540. doi:10.1093/ej/ueaa073.

Anthony, N. (2023) ‘Nigeria’s CBDC was not chosen. It was forced.’ Cato at Liberty Blog.

Auer, R. and Böhme, R. (2020) ‘The technology of retail central bank digital currency’, BIS Quarterly Review (March), pp. 85–100.

Auer, R. and Böhme, R. (2021) Central bank digital currency: The quest for mi-nimally invasive technology. BIS Working Papers No. 948. Basel: Bank for In-ternational Settlements.

Bank for International Settlements (2020) Central bank digital currencies: Foundational principles and core features. Basel: BIS.

Bank of England (2020) Central Bank Digital Currency: opportunities, challen-ges and design. London: Bank of England.

Barrdear, J. and Kumhof, M. (2016) ‘The macroeconomics of central bank issued digital currencies’, Bank of England Staff Working Paper No. 605.

Bernanke, B.S., Gertler, M. and Gilchrist, S. (1999) ‘The Financial Accelera-tor in a Quantitative Business Cycle Framework’, in Taylor, J.B. and Wood-ford, M. (eds.) Handbook of Macroeconomics. Vol. 1C. Amsterdam: Elsevier, pp. 1341–1393.

Bindseil, U. (2019) ‘Central bank digital currency: Financial system implica-tions and control’, International Journal of Political Economy, 48(4), pp. 303–

doi:10.1080/08911916.2019.1693160.

Bindseil, U. (2020) ‘Tiered CBDC and the financial system’, European Central Bank Working Paper Series No. 2351.

Blanchard, O. (2016) Do DSGE Models Have a Future? PIIE Policy Brief PB16-

Washington, DC: Peterson Institute for International Economics.

Bordo, M.D. and Levin, A.T. (2017) Central bank digital currency and the future of monetary policy. NBER Working Paper No. 23711. Cambridge, MA: Natio-nal Bureau of Economic Research.

Calvo, G.A. (1983) ‘Staggered prices in a utility-maximizing framework’, Jour-nal of Monetary Economics, 12(3), pp. 383–398.

Canova, F. and Sala, L. (2009) ‘Back to square one: identification issues in DSGE models’, Journal of Monetary Economics, 56(4), pp. 431–449.

Christiano, L.J., Eichenbaum, M. and Evans, C.L. (2005) ‘Nominal Rigidities and the Dynamic Effects of a Shock to Monetary Policy’, Journal of Political Economy, 113(1), pp. 1–45. doi:10.1086/426038.

Christiano, L.J., Eichenbaum, M. and Trabandt, M. (2018) ‘On DSGE Mo-dels’, Journal of Economic Perspectives, 32(3), pp. 113–140.

Del Negro, M. and Schorfheide, F. (2013) ‘DSGE Model-Based Forecasting’, in Elliott, G. and Timmermann, A. (eds.) Handbook of Economic Forecasting. Vol.

Amsterdam: Elsevier, pp. 57–140. doi:10.1016/B978-0-444-53683-9.00002-5.

Diamond, D.W. and Dybvig, P.H. (1983) ‘Bank runs, deposit insurance, and liquidity’, Journal of Political Economy, 91(3), pp. 401–419.

Fernández-Villaverde, J. (2010) ‘The econometrics of DSGE models’, SERI-Es: Journal of the Spanish Economic Association, 1(1), pp. 3–49. doi:10.1007/s13209-009-0014-7.

Galí, J. (2008) Monetary Policy, Inflation, and the Business Cycle. Princeton, NJ: Princeton University Press.

Galí, J. (2015) Monetary Policy, Inflation, and the Business Cycle: An Introducti-on to the New Keynesian Framework and Its Applications. 2nd edn. Princeton, NJ: Princeton University Press.

Galí, J. and Monacelli, T. (2005) ‘Monetary Policy and Exchange Rate Volatility in a Small Open Economy’, The Review of Economic Studies, 72(3), pp. 707–734.

Gertler, M. and Karadi, P. (2011) ‘A model of unconventional monetary poli-cy’, Journal of Monetary Economics, 58(1), pp. 17–34.

International Monetary Fund (2023) Monetary Policy Implications of Central Bank Digital Currencies. IMF Working Paper. Washington, DC: International Monetary Fund.

International Monetary Fund (2024) Implications of Central Bank Digital Cur-rencies for Monetary Policy Transmission. IMF FinTech Note. Washington, DC: International Monetary Fund.

Iskrev, N. (2010) ‘Local identification in DSGE models’, Journal of Monetary Economics, 57(2), pp. 189–202.

Kaplan, G., Moll, B. and Violante, G.L. (2018) ‘Monetary Policy According to HANK’, American Economic Review, 108(3), pp. 697–743.

Keister, T. and Sanches, D. (2023) ‘Should Central Banks Issue Digital Cur-rency?’, The Review of Economic Studies, 90(1), pp. 404–431.

Kiff, J., Alwazir, J. and Davidovic, S. (2020) A survey of research on retail central bank digital currency. Washington, DC: International Monetary Fund.

Kumhof, M. and Noone, C. (2018) ‘Central bank digital currencies: design principles and balance sheet implications’, Bank of England Staff Working Paper No. 725.

Kumhof, M. and Noone, C. (2021) ‘Central bank digital currencies: Design principles for financial stability’, Economic Analysis and Policy, 71, pp. 553–

doi:10.1016/j.eap.2021.06.012.

Mancini-Griffoli, T. et al. (2018) Casting Light on Central Bank Digital Currency. IMF Staff Discussion Note. Washington, DC: International Monetary Fund.

Niepelt, D. (2024) ‘Money and Banking with Reserves and CBDC’, The Journal of Finance, 79(4), pp. 2505–2552.

Schorfheide, F. (2011) ‘Estimation and Evaluation of DSGE Models: Progress and Challenges’, NBER Working PaperNo. 16781. Cambridge, MA: National Bureau of Economic Research.

Smets, F. and Wouters, R. (2007) ‘Shocks and frictions in US business cycles: A Bayesian DSGE approach’, American Economic Review, 97(3), pp. 586–606. doi:10.1257/aer.97.3.586.

Taylor, J.B. (1993) ‘Discretion versus policy rules in practice’, Carnegie-Roches-ter Conference Series on Public Policy, 39, pp. 195–214.

Wenker, K. (2022) ‘Retail central bank digital currencies (CBDC), disin-termediation and financial privacy: The case of the Bahamian Sand Dol-lar’, FinTech, 1(4), 26.

Woodford, M. (2003) Interest and Prices: Foundations of a Theory of Monetary Policy. Princeton, NJ: Princeton University Press.

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Published

2026-06-30

Issue

Section

Studies

How to Cite

Gyüre, F. (2026). The Monetary Transmission Effects of Central Bank Digital Currency (CBDC) in Hungary: A Simplified DSGE Simulation. Public Finance Quarterly, 72(2), 99-113. https://doi.org/10.35551/PFQ_2026_2_4