We decompose the square of the VIX into expected uncertainty and a variance-premium component as a proxy for risk aversion and then quantify the effects of shocks to each component on EMBI sovereign spreads of 70 emerging economies over 1993–2024. Expected-uncertainty and risk aversion shocks generate nearly identical peak increases in EMBI spreads of about 28–29 basis points in the first quarter, but their subsequent propagation differs markedly. The uncertainty response remains economically and statistically significant for about a year, whereas the risk aversion response fades within six months. State-dependent estimates show that uncertainty transmission is substantially stronger in countries with low reserves and low per capita incomes, with more selective evidence of amplification by high external debt at medium horizons. A country-specific measure of exposure to adverse global risk states, constructed from sovereign-spread sensitivity to increases in the aggregate VIX, is largely distinct from debt and reserves and is especially informative for short-run transmission of risk aversion shocks, while also containing information about expected uncertainty responses. These findings show that treating the VIX as a single global-risk factor can mask shocks with similar immediate effects but very different persistence and cross-country transmission.
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| Reproducible Research Repository (World Bank) | https://reproducibility.worldbank.org |
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| Author | Affiliation | |
|---|---|---|
| Reina Eskimez | World Bank | rkawai@worldbank.org |
| Dana Vorisek | World Bank | dvorisek@worldbank.org |
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| Location | Code |
|---|---|
| World | WLD |
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|---|---|
| MIT License | https://opensource.org/license/mit |
| World Bank IGO Rider | https://github.com/worldbank/metadata-editor/blob/main/WB-IGO-RIDER.md |
| Name | Affiliation | |
|---|---|---|
| Reina Eskimez | World Bank | rkawai@worldbank.org |
| Reproducibility WBG | World Bank | reproducibility@worldbank.org |
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Reproducibility WBG | DECDI | World Bank - Development Impact Department | Verification and preparation of metadata |
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