Abstract
This study investigated co integration and asymmetric adjustments in the end equilibrium between Ghanaian retail and wholesale maize markets using the Enders and Siklos technique. Two competing models, namely Consistent Threshold Autoregressive (C-TAR) and Consistent Momentum Threshold Autoregressive (C-MTAR) models were estimated. Following the application of a standard model selection technique, C- MTAR model is selected as most appropriate. The results of the C-MTAR model confirm that the retail and wholesale prices of maize in Ghana are co integrated with threshold adjustment. Furthermore, it suggests that the process is asymmetric when the retail and wholesale prices of Ghanaian maize adjust to achieve the longterm equilibrium. Additionally, the adjustment is relatively faster when the price differential is increasing than when it is decreasing.
Keywords
- Asymmetric Price Transmission Search this journal for Asymmetric Price Transmission (opens in a new tab)
- Threshold Adjustment Search this journal for Threshold Adjustment (opens in a new tab)
- Co Integration Search this journal for Co Integration (opens in a new tab)
- AIC Search this journal for AIC (opens in a new tab)
- BIC Search this journal for BIC (opens in a new tab)
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Copyright (c) 2012 Henry de-Graft Acquah (Author)

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Keywords
- Asymmetric Price Transmission Search this journal for Asymmetric Price Transmission (opens in a new tab)
- Threshold Adjustment Search this journal for Threshold Adjustment (opens in a new tab)
- Co Integration Search this journal for Co Integration (opens in a new tab)
- AIC Search this journal for AIC (opens in a new tab)
- BIC Search this journal for BIC (opens in a new tab)
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