Monetary Policy Transmission in Primary and Secondary Markets: Evidence From Indian Government Securities

Key Takeaways

• Primary‑market yields move almost one‑for‑one with RBI policy rate.
• Secondary‑market pass‑through slows and weakens as bond maturity lengthens.
• Captive investors and RBI auction control anchor primary yields to policy.
• Faster primary transmission raises sovereign debt‑stress risk during tightening.

Pulse Analysis

Monetary‑policy transmission is a cornerstone of central‑bank strategy, yet its effectiveness varies across market segments. In most economies, changes in the policy rate gradually filter through bond yields, influencing borrowing costs and inflation expectations. India’s unique blend of a dominant sovereign issuer and a central bank that also oversees debt auctions creates a distinct transmission channel, prompting scholars to dissect primary and secondary market behavior separately.

The XKDR paper uncovers a stark contrast: primary‑market government securities absorb policy‑rate adjustments almost immediately, with near‑complete pass‑through, while secondary‑market yields adjust more slowly and the effect diminishes for longer‑dated bonds. This pattern stems from India’s institutional framework—captive institutional investors dominate primary auctions, and the RBI’s discretionary auction authority ensures that primary yields remain anchored to the policy stance. In the secondary market, broader investor participation and liquidity considerations dilute the direct impact of policy moves.

For policymakers, the research signals a double‑edged sword. Aggressive rate hikes intended to curb inflation can swiftly elevate sovereign borrowing costs, potentially straining fiscal balances and raising the specter of debt distress. Investors, meanwhile, must account for the rapid primary‑market response when pricing new issues, while secondary‑market participants may benefit from a lagged adjustment. The findings suggest that any future calibration of India’s monetary stance will need to weigh inflation targets against the fiscal implications of near‑instant primary‑market transmission, a balance that could shape the country’s debt‑management strategy for years to come.