方法证据记录
Causality in Variance Test
The causality-in-variance test detects whether shocks to one variable cause changes in the conditional variance (volatility) of another variable, distinct from mean-level causality. Introduced by Cheung and Ng (1996), it identifies volatility spillovers and contagion effects—crucial for risk management and understanding financial market interdependencies. This approach has become standard in studying shock transmission across asset classes and geographies.
源记录
引文逐字复制自方法源记录。这些引文不代表任何层级的验证。
Test for Causality in Variance
分类方法记录 · regression-model / econometrics
- Cheung, Y. W., & Ng, L. K. (1996). A causality-in-variance test and its application to financial market prices. Journal of Econometrics, 72(1-2), 33-61. · DOI 10.1016/0304-4076(94)01714-X
- Hafner, C. M., & Herwartz, H. (2006). Testing for causality in variance using multivariate GARCH models. Journal of Econometrics, 135(1-2), 129-153. · URL
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