Table 2. Regime-switching modelling of implied volatility | |
Model 1 Model 2 Model 3 Model 4 | |
w1 Y1 γ 2 Ψ2 W1 = w 2 LL |
Model parameters ∣ 0.2664a -0.0129a 0.2581a 0.0033a 01612a 0.0093a 0.1561a 0.0035a 1.1093a 0.9810a 0.9393a 0.9796a -0.5693a -0.2328a -0.6094a -0.6226a -0.3991a 0.0632a -0.5627a -1.4508a 40.4928a 7.0033a 90.7546a 9.9678a Hypothesis tests ∣ 6074.104a 122.558a 5423.406a 0.0377 585.366a 0.0798 1.588 45.094a 0.118 1184.4911a 50.754a 12.8244a 2.022 50.034a 2.626 71.5032a 7166.36 11997.22 7369.75 13491.68 |
Notes: Significance at the 1, 5 and 10 % level is denoted by a, b and vt = wi + βirt-1 + γi rt2-1 +ζt for Model 3, and vt = wi +δivt-1 + βirt-1 + γi rt2-1 +ζt for Model 4. The null |
hypothesis tests are distributed asχ2(1) . LL is the log maximum
likelihood function.
22
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