2024-05-16-IMF-A_Framework_for_Systemwide_Liquidity_Analysis_51页_1mb

A Framework for Systemwide Liquidity Analysis Summary

Xiaodan Ding, Dimitrios Laliotis, Priscilla Toffano
IMF Working Paper, 2024

Purpose

This study introduces a novel Systemwide Liquidity (SWL) framework to analyze liquidity stress beyond banks, incorporating non-bank financial institutions (NBFIs) and interconnected financial agents. The framework complements traditional liquidity and interconnectedness analyses by tracing liquidity flows, assessing amplification mechanisms like fire-sales, and enabling policy simulations using unique balance sheet and asset encumbrance data.

Key Features

• Methodology: Uses narrative design ((e.g.), liquidity shock scenarios), correlated shocks modeled with copulas to handle uncertainty, and Monte Carlo simulations ((e.g.), 10,000 simulations per agent for net liquidity position calculations).
• Adaptability: Tailored to country-specific vulnerabilities, considering bilateral exposures, market valuation shocks, and behavioral responses, such as the pecking order in liquidating assets.
• Policy Relevance: Aids macro-prudential policy calibration by evaluating agent willingness to intermediate liquidity under stress, such as binding regulatory constraints (e.g., Liquidity Coverage Ratio or LCR).

Mexico Case Study

• Context: Mexico's open financial system involves high interconnectedness, with agents like commercial and development banks, investment funds, and foreign investors contributing to liquidity risks.
• Findings:
  • Commercial banks act as shock absorbers, showing marginal liquidity shortfalls even under severe scenarios, through repo transactions.
  • Development banks are vulnerable under binding liquidity constraints, with greater reliance on short-term funding increasing liquidity risks.
  • Policy simulations suggest expanding investment funds' repo market access improves system resilience, while strict regulatory constraints on banks can exacerbate liquidity strains on development banks.
• Amplification: Fire-sales mechanisms intensify liquidity stresses by triggering broader market devaluations, raising tail risks.

Policy Implications

The framework supports crisis management by quantifying liquidity needs and informing measures to alleviate bottlenecks, such as widening eligible collateral under emergency liquidity assistance (ELA). Limitations include exclusion of currency denomination effects and dependency on historical or expert-calibrated correlation inputs.