Range-Based Volatility Estimators for Monitoring Market Stress: Evidence from Local Food Price Data
用于监测市场压力的区间波动率估计:地方食品价格证据
Range-based volatility estimators are widely used in financial econometrics to quantify risk and market stress, yet their application to local commodity markets remains limited. This paper shows how open-high--low-close (OHLC) volatility estimators can be adapted to monitor localized market distress across diverse development contexts, including conflict-affected settings, climate-exposed regions, remote and thinly traded markets, and import- and logistics-constrained urban…