Estimating policy effects on spatial market efficiency: An extension of the parity bounds model
The standard parity bounds model (PBM) is extended to allow for dynamic shifts in regime probabilities in response to changes in marketing policy. The approach allows estimation of the length of the adjustment period and a statistical test for no policy effects. The extended PBM is applied to maize...
| Autores principales: | , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2007
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| Acceso en línea: | https://hdl.handle.net/10568/4129 |
| _version_ | 1855519764912275456 |
|---|---|
| author | Negassa, A. Myers, R.J. |
| author_browse | Myers, R.J. Negassa, A. |
| author_facet | Negassa, A. Myers, R.J. |
| author_sort | Negassa, A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The standard parity bounds model (PBM) is extended to allow for dynamic shifts in regime probabilities in response to changes in marketing policy. The approach allows estimation of the length of the adjustment period and a statistical test for no policy effects. The extended PBM is applied to maize and wheat markets in Ethiopia. Evidence of a dynamic adjustment path is found and grain marketing reforms are found to have improved spatial efficiency in a few markets, worsened it in a few others, but generally to have had little effect on the spatial efficiency of Ethiopian grain markets. |
| format | Journal Article |
| id | CGSpace4129 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2007 |
| publishDateRange | 2007 |
| publishDateSort | 2007 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace41292024-03-03T19:19:19Z Estimating policy effects on spatial market efficiency: An extension of the parity bounds model Negassa, A. Myers, R.J. The standard parity bounds model (PBM) is extended to allow for dynamic shifts in regime probabilities in response to changes in marketing policy. The approach allows estimation of the length of the adjustment period and a statistical test for no policy effects. The extended PBM is applied to maize and wheat markets in Ethiopia. Evidence of a dynamic adjustment path is found and grain marketing reforms are found to have improved spatial efficiency in a few markets, worsened it in a few others, but generally to have had little effect on the spatial efficiency of Ethiopian grain markets. 2007-05 2011-07-05T18:35:35Z 2011-07-05T18:35:35Z Journal Article https://hdl.handle.net/10568/4129 en Limited Access Wiley Negassa, A. and Myers, R.J. 2007. Estimating policy effects on spatial market efficiency: An extension of the parity bounds model. American Journal of Agricultural Economics 89(2): 338-352 |
| spellingShingle | Negassa, A. Myers, R.J. Estimating policy effects on spatial market efficiency: An extension of the parity bounds model |
| title | Estimating policy effects on spatial market efficiency: An extension of the parity bounds model |
| title_full | Estimating policy effects on spatial market efficiency: An extension of the parity bounds model |
| title_fullStr | Estimating policy effects on spatial market efficiency: An extension of the parity bounds model |
| title_full_unstemmed | Estimating policy effects on spatial market efficiency: An extension of the parity bounds model |
| title_short | Estimating policy effects on spatial market efficiency: An extension of the parity bounds model |
| title_sort | estimating policy effects on spatial market efficiency an extension of the parity bounds model |
| url | https://hdl.handle.net/10568/4129 |
| work_keys_str_mv | AT negassaa estimatingpolicyeffectsonspatialmarketefficiencyanextensionoftheparityboundsmodel AT myersrj estimatingpolicyeffectsonspatialmarketefficiencyanextensionoftheparityboundsmodel |