Prospects for global food security: a critical appraisal of past projections and predictions
During the last half century, a number of individuals and institutions, including the Food and Agriculture Organization of the United Nations (FAO) and IFPRI, have engaged in projections of future food demand, supply, and related variables. In this brief, Alex McCalla and Cesar Revoredo compare proj...
| Main Authors: | , |
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| Format: | Brief |
| Language: | Inglés |
| Published: |
International Food Policy Research Institute
2001
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/156363 |
| _version_ | 1855519543021010944 |
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| author | McCalla, Alex F. Revoredo, Cesar L. |
| author_browse | McCalla, Alex F. Revoredo, Cesar L. |
| author_facet | McCalla, Alex F. Revoredo, Cesar L. |
| author_sort | McCalla, Alex F. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | During the last half century, a number of individuals and institutions, including the Food and Agriculture Organization of the United Nations (FAO) and IFPRI, have engaged in projections of future food demand, supply, and related variables. In this brief, Alex McCalla and Cesar Revoredo compare projections with real-life outcomes. Projections forecast outcomes on the basis of certain underlying factors. If such forecasted outcomes are undesirable, changes may be made in the underlying factors so that the projections may not, in fact, come to pass. Many projections serve this precise goal. Therefore, the success of projections may not be that they match actual outcomes but that they avoid such outcomes by promoting action to change underlying variables. Unlike predictions, which are successful only if they match actual outcomes, projections that differ from actual outcomes may reflect either poor projection models or changes in underlying variables, possibly caused by the projections themselves. |
| format | Brief |
| id | CGSpace156363 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2001 |
| publishDateRange | 2001 |
| publishDateSort | 2001 |
| publisher | International Food Policy Research Institute |
| publisherStr | International Food Policy Research Institute |
| record_format | dspace |
| spelling | CGSpace1563632025-02-24T06:46:04Z Prospects for global food security: a critical appraisal of past projections and predictions McCalla, Alex F. Revoredo, Cesar L. food consumption food security During the last half century, a number of individuals and institutions, including the Food and Agriculture Organization of the United Nations (FAO) and IFPRI, have engaged in projections of future food demand, supply, and related variables. In this brief, Alex McCalla and Cesar Revoredo compare projections with real-life outcomes. Projections forecast outcomes on the basis of certain underlying factors. If such forecasted outcomes are undesirable, changes may be made in the underlying factors so that the projections may not, in fact, come to pass. Many projections serve this precise goal. Therefore, the success of projections may not be that they match actual outcomes but that they avoid such outcomes by promoting action to change underlying variables. Unlike predictions, which are successful only if they match actual outcomes, projections that differ from actual outcomes may reflect either poor projection models or changes in underlying variables, possibly caused by the projections themselves. 2001 2024-10-24T12:43:55Z 2024-10-24T12:43:55Z Brief https://hdl.handle.net/10568/156363 en https://hdl.handle.net/10568/156303 Open Access application/pdf International Food Policy Research Institute McCalla, Alex F.; Revoredo, Cesar L. 2001. Prospects for global food security: a critical appraisal of past projections and predictions. 2020 Policy Brief 71. https://hdl.handle.net/10568/156363 |
| spellingShingle | food consumption food security McCalla, Alex F. Revoredo, Cesar L. Prospects for global food security: a critical appraisal of past projections and predictions |
| title | Prospects for global food security: a critical appraisal of past projections and predictions |
| title_full | Prospects for global food security: a critical appraisal of past projections and predictions |
| title_fullStr | Prospects for global food security: a critical appraisal of past projections and predictions |
| title_full_unstemmed | Prospects for global food security: a critical appraisal of past projections and predictions |
| title_short | Prospects for global food security: a critical appraisal of past projections and predictions |
| title_sort | prospects for global food security a critical appraisal of past projections and predictions |
| topic | food consumption food security |
| url | https://hdl.handle.net/10568/156363 |
| work_keys_str_mv | AT mccallaalexf prospectsforglobalfoodsecurityacriticalappraisalofpastprojectionsandpredictions AT revoredocesarl prospectsforglobalfoodsecurityacriticalappraisalofpastprojectionsandpredictions |