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

Project Abstract

In this study, we examine how the adoption of Central Bank Digital Currencies (CBDCs) alters the transmission mechanism of monetary policy in emerging economies, focusing on transmission channels, policy effectiveness, and macro-financial stability. We develop a theoretical framework that integrates CBDC design features—such as account-based versus token-based access, interest-bearing versus non-interest-bearing structures, tiered withdrawal limits, and interoperability with commercial banks—into the canonical monetary policy transmission channels interest rate channel, credit channel, exchange rate channel, and balance sheet channel. Empirically, we employ a mixed-method approach combining macroeconomic modeling, cross-country panel analysis, and scenario simulations for a representative set of emerging economies that have piloted or implemented CBDCs or are in advanced stages of exploration. The quantitative strategy uses a structural vector autoregression (SVAR) augmented with CBDC-related policy variables, such as central bank digitization indices, digital wallet adoption rates, and domestic payment system efficiency metrics, to identify causal impacts on short- and long-run interest rates, bank lending growth, credit spreads, and currency depreciation/appreciation dynamics. Complementary case studies highlight country-specific institutional features, financial inclusion progress, and the interaction between CBDCs and macroprudential policy. The analysis addresses potential trade-offs between policy credibility, financial system resilience, and privacy considerations, and how these influence policy transmission in the presence of non-bank payment entrants and capital flow volatility. We also assess the differential effects across income levels, financial development stages, and banking sector concentration, exploring how CBDCs may shift the relative effectiveness of conventional policy tools versus non-traditional instruments such as reserve requirements, liquidity-coverage mechanisms, and macroprudential buffers. The results anticipate that CBDCs can compress intermediation margins and elevate the responsiveness of policy rates to shocks through enhanced payment-system transmission and quicker policy rate pass-through, while potentially introducing new frictions related to disintermediation risk, bank funding costs, and currency stability if CBDC adoption is uneven. Our scenario analyses reveal conditions under which CBDCs strengthen monetary policy credibility, reduce transaction frictions, and bolster financial inclusion, versus scenarios where fragmentation of access or privacy concerns undermine transmission efficiency. The study contributes to policy design by outlining optimal CBDC configurations that maximize transmission effectiveness while preserving financial stability, specifying calibration guidelines for digitalization timelines, privacy safeguards, and interoperability standards. It provides practical insights for central banks on risk management, supervisory frameworks, and cross-border monetary cooperation to ensure robust policy transmission in the evolving digital payments era. The findings have implications for policymakers, financial institutions, and researchers focused on the modernization of monetary policy in an increasingly digitized and interconnected global economy.

Project Overview

What This Project Is About

---

A straightforward, non-technical look at how digital money issued by a central bank (CBDCs) could influence how central banks guide the economy. The project examines how CBDCs interact with tools like interest rates and bank lending, and how this changes the behavior of banks, households, and businesses in emerging economies.

---

---

The Problem It Addresses

---

Emerging economies often face challenges in monetary policy effectiveness due to informal financial systems, limited banking access, and rising digital payments. The project investigates whether CBDCs can improve policy transmission to achieve goals like price stability and growth, while also identifying risks to financial stability and inclusion.

---

---

Objectives of the Project

---

1. Explain what CBDCs are and how they differ from traditional cash and bank money.
2. Describe how CBDCs might affect central bank policy tools and their transmission channels.
3. Assess potential benefits and risks for financial inclusion and stability in emerging economies.
4. Provide a simple framework for evaluating CBDC policies using available data and case studies.
5. Suggest practical considerations for policymakers in implementing CBDCs.

---

---

What You Will Do Step by Step

---

1. Review basic concepts of monetary policy and CBDCs in accessible terms.
2. Collect and summarize published case studies and country experiences.
3. Identify key transmission channels likely affected by CBDCs.
4. Analyze potential impacts on bank funding, payment systems, and consumer behavior.
5. Discuss inclusion, privacy, and regulatory considerations.
6. Draft a simple evaluative framework for assessing CBDC policies.
7. Propose practical recommendations for a hypothetical country context.

---

---

Expected Outcome

A clear, student-friendly understanding of how CBDCs may alter monetary policy transmission in emerging economies, including potential policy options, benefits, and risks for inclusion and stability. The project should yield a set of practical guidelines for policymakers and a basis for more in-depth research.