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Ahamuefula Ephraim OGBONNA, PDS, B.Sc., M.Sc., Ph.D. (Statistics)
Ahamuefula Ephraim OGBONNA, PDS, B.Sc., M.Sc., Ph.D. (Statistics)
Centre for Econometrics and Applied Research, Ibadan, Nigeria
Email confirmado em cear.org.ng - Página inicial
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Geopolitical risk and stock market volatility in emerging markets: A GARCH–MIDAS approach
AA Salisu, AE Ogbonna, L Lasisi, A Olaniran
The North American Journal of Economics and Finance 62, 101755, 2022
912022
The return volatility of cryptocurrencies during the COVID-19 pandemic: Assessing the news effect
AA Salisu, AE Ogbonna
Global Finance Journal 54, 100641, 2022
822022
A new unit root test for unemployment hysteresis based on the autoregressive neural network
OOS Yaya, AE Ogbonna, F Furuoka, LA Gil‐Alana
Oxford Bulletin of Economics and Statistics 83 (4), 960-981, 2021
82*2021
Market efficiency and volatility persistence of cryptocurrency during pre- and post-crash periods of Bitcoin: Evidence based on fractional integration
OOS Yaya, AE Ogbonna, R Mudida, N Abu
International Journal of Finance & Economics, 2020
662020
Google trends and the predictability of precious metals
AA Salisu, AE Ogbonna, A Adewuyi
Resources Policy 65, 101542, 2020
602020
Stock‐induced Google trends and the predictability of sectoral stock returns
AA Salisu, AE Ogbonna, I Adediran
Journal of Forecasting 40 (2), 327-345, 2021
592021
How persistent and dynamic inter-dependent are pricing of Bitcoin to other cryptocurrencies before and after 2017/18 crash?
OOS Yaya, AE Ogbonna, OE Olubusoye
Physica A: Statistical Mechanics and its Applications 531, 121732, 2019
542019
Oil price shocks and inflation rate persistence: A Fractional Cointegration VAR approach
TF Oloko, AE Ogbonna, AA Adedeji, N Lakhani
Economic Analysis and Policy 70, 259-275, 2021
452021
Hysteresis of unemployment rates in Africa: new findings from Fourier ADF test
OOS Yaya, AE Ogbonna, R Mudida
Quality & Quantity 53 (6), 2781-2795, 2019
452019
Oil shocks and volatility of green investments: GARCH-MIDAS analyses
OOS Yaya, AE Ogbonna, XV Vo
Resources Policy 78, 102789, 2022
372022
A new index for measuring uncertainty due to the COVID-19 pandemic
AA Salisu, AE Ogbonna, TF Oloko, IA Adediran
Sustainability 13 (6), 3212, 2021
342021
Another look at the energy-growth nexus: New insights from MIDAS regressions
AA Salisu, AE Ogbonna
Energy 174, 69-84, 2019
342019
A global analysis of the macroeconomic effects of climate change
IA Adediran, KO Isah, AE Ogbonna, SK Badmus
Asian Economics Letters 4 (1), 2023
272023
Energy pricing during the COVID-19 pandemic: Predictive information-based uncertainty indexes with machine learning algorithm
OE Olubusoye, OJ Akintande, OOS Yaya, AE Ogbonna, AF Adenikinju
Intelligent Systems with Applications 12, 200050, 2021
252021
Do we Experience Day-of-the-week Effects in Returns and Volatility of Cryptocurrency?
OOS Yaya, AE Ogbonna
232019
Fractional cointegration between gold price and inflation rate: Implication for inflation rate persistence
TF Oloko, AE Ogbonna, AA Adedeji, N Lakhani
Resources Policy 74, 102369, 2021
212021
An information‐based index of uncertainty and the predictability of energy prices
OE Olubusoye, AE Ogbonna, OOS Yaya, D Umolo
International Journal of Energy Research, 2021
212021
Energy-related uncertainty and international stock market volatility
AA Salisu, AE Ogbonna, R Gupta, E Bouri
The Quarterly Review of Economics and Finance 95, 280-293, 2024
202024
A moving average heterogeneous autoregressive model for forecasting the realized volatility of the US stock market: Evidence from over a century of data
AA Salisu, R Gupta, AE Ogbonna
International Journal of Finance & Economics 27 (1), 384-400, 2022
202022
Information and Communication Technology (ICT) and youth unemployment in Africa
AE Ogbonna, IA Adediran, TF Oloko, KO Isah
Quality & Quantity 57 (6), 5055-5077, 2023
172023
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