2023-09-21-IMF-The_Market_Price_of_Risk_and_Macro-Financial_Dynamics_87页_1mb

The Market Price of Risk and Macro-Financial Dynamics

Summary

This study introduces the Volatility Financial Conditions Index (VFCI) as a new measure of financial conditions, derived from asset pricing theory. Unlike traditional FCIs, the VFCI is based on the conditional volatility of GDP (or consumption) spanned by a set of financial variables, reflecting the market price of risk in the economy.

Key findings include:

1. Conceptual Framework:
   The VFCI is theoretically linked to the market price of risk, providing superior explanatory power for stock and bond risk premia compared to existing FCIs (NFCI, GSFCI, VIX). It measures the compensation for bearing macroeconomic risk.

2. Empirical Construction:
   The VFCI is estimated using a heteroskedastic regression, capturing the covariance between financial variables (equity returns, volatility, term spread, liquidity spread, credit spread, and default spread) and GDP growth. It demonstrates a strong negative correlation with the conditional mean of GDP growth.

3. Macroeconomic Effects:

   • A tightening of financial conditions (higher VFCI) leads to a persistent decline in output and an immediate easing of monetary policy.
   • Conversely, contractionary monetary policy shocks trigger tighter financial conditions.
   • Shocks to VFCI have significant and persistent effects on output, prices, and interest rates, with effects varying by regime (e.g., financial crises vs. calm periods).

4. Robustness Across Identification Schemes:
   Using multiple methods (e.g., SVAR with heteroskedasticity, instrumental variables, local projections, and sign restrictions), the study confirms causal links between financial conditions and macroeconomic aggregates, with results consistent across specifications.

The VFCI offers a theoretically grounded approach to measuring financial conditions, enhancing policymakers' ability to assess risks and respond to market fluctuations.