In this paper, we investigate whether key relations in the crude oil market have been stable over time. This is done by estimating hybrid time-varying parameter structural Bayesian VAR models using monthly data ranging from February 1973 to May 2023. Model selection suggests that while stochastic volatility is preferred over homoscedasticity, the dynamics of the model are best described by constant parameters in all equations.
机构:
Univ Pretoria, Dept Econ, Private Bag X20, ZA-0028 Pretoria, South Africa
Ctr Econometr & Appl Res, Ibadan, NigeriaUniv Pretoria, Dept Econ, Private Bag X20, ZA-0028 Pretoria, South Africa
Salisu, Afees A.
Isah, Kazeem
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机构:
Univ KwaZulu Natal UKZN, Coll Law & Management Studies, Sch Accounting Econ & Finance, Dept Econ, Durban, South Africa
Ctr Econometr & Appl Res, Ibadan, NigeriaUniv Pretoria, Dept Econ, Private Bag X20, ZA-0028 Pretoria, South Africa
Isah, Kazeem
Oloko, Tirimisiyu O.
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h-index: 0
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Ctr Econometr & Appl Res, Ibadan, Nigeria
Fountain Univ, Opp Olomola Hosp, Dept Econ, Agr Settlement Rd, Osogbo, Osun, NigeriaUniv Pretoria, Dept Econ, Private Bag X20, ZA-0028 Pretoria, South Africa