| Volatility parameters | BIC criterion | |||
---|---|---|---|---|---|
α | β | λ | AG-DCC | G-DCC | |
International price | − 0.050d | 1.063d | − 0.026d |  |  |
Afghanistan | 0.640c | 0.629d | − 0.621c | − 365.105 | − 373.121a |
Argentina | 0.756d | 0.824d | − 1.067d | − 343.323 | − 352.282 a |
Brazil | 0.185 | − 0.017 | 0.423 | − 419.735 | − 428,869 a |
Cameroon | − 0.009d | 1.045d | − 0.120d | − 455.457 | − 462.306 a |
Ethiopia | 0.299c | 0.766d | − 0.307c | − 375.085 | − 382.040 a |
Georgia | 0.290 | 0.312 | − 0.271 | − 454.611 | − 463,396 a |
India | − 0.114d | 0.657d | − 0.0003d | − 453.552 | − 460.023 a |
Israel | 0.315c | 0.546d | 0.111 | − 518.176 | − 520.403 a |
Kazakhstan | 1.228d | − 0.079d | 1.315d | − 547.618 | − 556.808 a |
Kyrgyzstan | 0.025d | 0.677d | − 0.445d | − 393,186 | − 401.774 a |
Mauritania | 0.026d | 1.025d | − 0.101d | − 582.783 a | − 581.487 |
Peru | 0.684c | 0.504d | − 0.214 | − 658.975 | − 664.758 a |
South Africa | − 0.070 | 0.023 | 0.644c | − 395.570 | − 412.752 a |
Tajikistan | 1.343b | 0.101 | − 0.817 | − 436.840 | − 442.670 a |
Ukraine | − 0.088d | − 0.040b | 0.721d | − 458.620 | − 467.778 a |
Uruguay | − 0.063d | 0.632d | 0.060d | − 396.943 | − 406.008 a |