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Banking & Finance

Tail-spillover effects between African currencies, bitcoin, gold and oil during two recent black swan events

, , & ORCID Icon
Article: 2343411 | Received 04 Oct 2023, Accepted 10 Apr 2024, Published online: 26 Apr 2024

Figures & data

Table 1. Summary statistics.

Figure 1. Evolution of return and volatility of each asset. (a) Return behaviour. (b) Volatility behaviour.

Figure 1. Evolution of return and volatility of each asset. (a) Return behaviour. (b) Volatility behaviour.

Figure 2. Connectedness plot for returns at 0.05, 0.50 and 0.95 quantiles.

Figure 2. Connectedness plot for returns at 0.05, 0.50 and 0.95 quantiles.

Figure 3. Connectedness plot for volatility at 0.05, 0.50 and 0.95 quantiles.

Figure 3. Connectedness plot for volatility at 0.05, 0.50 and 0.95 quantiles.

Table 2. Quantile connectedness table for returns series.

Table 3. Quantile connectedness table for volatility series.

Figure 4. Total connectedness returns.

Figure 4. Total connectedness returns.

Figure 5. Total connectedness volatility.

Figure 5. Total connectedness volatility.

Figure 6. (a) RTD_returns. (b) RTD_volatility.

Figure 6. (a) RTD_returns. (b) RTD_volatility.

Table 4. Correlation coefficients between TCI at different quantiles and sub-periods.

Figure 7. Net returns connectedness.

Figure 7. Net returns connectedness.

Figure 8. Net volatility connectedness.

Figure 8. Net volatility connectedness.

Figure 9. Country-specific connectedness (returns).

Figure 9. Country-specific connectedness (returns).

Figure 10. Country-specific connectedness (volatility).

Figure 10. Country-specific connectedness (volatility).

Data availability statement

The data is available from the authors upon reasonable request.