Table 3 The performance of the EWS indicated by trends of indicators. The first column shows different statistical measures on the prediction results of China’s financial crashes based on the benchmark indicators, and the second, third, and fourth columns show the corresponding results for the three benchmarks, respectively
| Â | Autocorrelation at lag one | Variance | Mean power spectrum |
|---|---|---|---|
Actual number of negative extreme events | 9 | 9 | 9 |
Number of events predicted | 0 | 3 | 5 |
Accuracy | null | 33.33% | 55.56% |
Average lead days of EWSs | null | 52 | 43 |