{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,6,7]],"date-time":"2024-06-07T01:43:06Z","timestamp":1717724586502},"reference-count":37,"publisher":"FapUNIFESP (SciELO)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Econ. Sociol. Rural"],"published-print":{"date-parts":[[2014,12]]},"abstract":"<jats:p>Neste artigo, pretende-se estimar os coeficientes de afeta\u00e7\u00e3o dos custos \u00e0s atividades agr\u00edcolas, a partir de informa\u00e7\u00e3o incompleta. Um modelo de desagrega\u00e7\u00e3o dos custos de fatores de produ\u00e7\u00e3o vari\u00e1veis por atividade foi desenvolvido com base na teoria da m\u00e1xima entropia e foi aplicado \u00e0 regi\u00e3o alentejo, usando os dados da base RICA de 2008. Os resultados obtidos mostram que a teoria da entropia \u00e9 uma op\u00e7\u00e3o flex\u00edvel e robusta para realizar a estima\u00e7\u00e3o de coeficientes de afeta\u00e7\u00e3o dos custos das atividades num contexto de informa\u00e7\u00e3o incompleta. Entre as duas variantes utilizadas, o modelo da entropia cruzada generalizada revelou maior capacidade de previs\u00e3o, uma vez que os coeficientes estimados s\u00e3o mais pr\u00f3ximos dos valores reais.<\/jats:p>","DOI":"10.1590\/s0103-20032014000400003","type":"journal-article","created":{"date-parts":[[2015,2,4]],"date-time":"2015-02-04T17:06:19Z","timestamp":1423069579000},"page":"669-686","source":"Crossref","is-referenced-by-count":0,"title":["Estimativa dos coeficientes de afeta\u00e7\u00e3o dos custos \u00e0s atividades agr\u00edcolas usando a teoria da m\u00e1xima entropia"],"prefix":"10.1590","volume":"52","author":[{"given":"Maria do Socorro","family":"Ros\u00e1rio","sequence":"first","affiliation":[{"name":"MAM, Portugal"}]},{"given":"Rui Manuel de Sousa","family":"Fragoso","sequence":"additional","affiliation":[{"name":"Universidade de \u00c9vora, Portugal"}]},{"given":"Maria Leonor da 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