Impact of Central Bank Digital Currencies (CBDCs) on Monetary Policy Transmission in Emerging Economies

Project Abstract

This study investigates how Central Bank Digital Currencies (CBDCs) influence the transmission mechanism of monetary policy in selected emerging economies, focusing on both theoretical channels and empirical dynamics. By integrating monetary theory with contemporary digitization realities, the research assesses how CBDCs alter interest rate channels, credit channels, exchange rate pass-through, and balance sheet channel effectiveness, considering financial inclusion, payment system efficiency, and monetary sovereignty. The study distinguishes between wholesale and retail CBDCs, examining heterogeneous impacts across financial development levels, banking sector structure, and institutional quality. A multi-method approach combines a theoretical framework with empirical analysis using macroeconomic time-series data, bank-level data, and market microstructure indicators from Nigeria, Brazil, and Indonesia as case studies, complemented by a broader cross-country panel for robustness. The theoretical model extends conventional IS-LM frameworks and DSGE-like structures to incorporate CBDC-related frictions, such as public-private token interactions, anonymous vs. traceable transactions, interest-bearing features, and potential disintermediation risks for banks. Key hypotheses explore (i) whether CBDCs enhance the effectiveness of conventional policy rates through improved rate transmission in payment systems, (ii) whether CBDCs alter credit allocation by influencing banks’ deposit bases and risk-taking incentives, (iii) the role of CBDCs in stabilizing or destabilizing exchange-rate dynamics via capital flow channels, and (iv) how CBDCs impact financial inclusion and thus the transmission mechanism through changes in agent behavior and information availability. The empirical analysis employs structural vector autoregressions (SVAR) with sign and zero restrictions to identify plausible CBDC-driven shocks, augmented by event-study approaches around CBDC pilot announcements and policy rate changes. Panel data methods address cross-country heterogeneity, while machine learning techniques help detect nonlinearities and regime shifts in transmission under varying levels of CBDC adoption, financial deepening, and macroeconomic volatility. The study also analyzes policy design features—privacy, interoperability, settlement finality, and tiered access—that shape transmission outcomes. Findings are expected to reveal that CBDCs can strengthen policy rate channels by reducing settlement lags and enhancing user-facing interest rate pass-through, but may dampen or reallocate bank credit depending on the competition for deposits and disintermediation risk, with mixed effects on exchange rate dynamics contingent on capital mobility regimes. The research highlights potential stability implications, including contagion channels during stress episodes and the role of CBDCs in macroprudential policy. Policy implications emphasize design choices that optimize transmission efficiency while preserving financial stability, such as carefully calibrated tiered access, strong interoperability standards, and coordinated framework for monetary and regulatory oversight. The study contributes to literature by providing granular, region-specific evidence on CBDC-enabled transmission enhancements or frictions, offering actionable guidance for policymakers in emerging economies pursuing digital currency integration without compromising macroeconomic stability.

Project Overview

What This Project Is About

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A plain-language overview of how digital money issued by a central bank (CBDCs) could influence the way monetary policy works in developing economies. The project looks at how CBDCs might change the way banks lend, how people hold money, and how the central bank communicates policy to the economy.

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The Problem It Addresses

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Traditional money systems can be slow to transmit policy changes to households and businesses. In emerging economies, gaps in payment infrastructure and financial inclusion can blunt policy effects. The project studies whether CBDCs can make monetary policy more effective by improving payment speed, reducing transaction costs, and nudging financial inclusion.

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Objectives of the Project

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1. Explain what CBDCs are in simple terms and how they differ from cash and bank deposits.
2. Identify ways CBDCs could affect key channels of monetary policy transmission (e.g., interest rates, credit, expectations).
3. Assess potential benefits and risks for financial inclusion and stability in emerging markets.
4. Propose a framework for evaluating CBDC impacts using available data and case studies.

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What You Will Do Step by Step

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1) Review basic concepts of CBDCs and monetary policy transmission.

2) Gather accessible data from central banks, payment systems, and academic studies.

3) Compare scenarios with and without CBDCs in simplified models or case examples.

4) Analyze potential effects on payment efficiency, bank deposits, and lending behavior.

5) Discuss risks such as cybersecurity, privacy, and financial stability concerns.

6) Synthesize findings into practical implications for policymakers and stakeholders.

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Expected Outcome

A clear, reader-friendly assessment of how CBDCs could change monetary policy effectiveness in emerging economies, including potential benefits, risks, and recommendations for policymakers on implementation and safeguards.