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Should tax legislation be reformed to encourage savings?

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Sobre o papel dos três grandes centros do poder mundial - Estados Unidos, União Europeia e Japão - afirma-se, corretamente:

",[192],{"_43":135,"_57":58,"_59":60,"_136":137,"_138":139,"_111":140,"_113":140,"_45":193,"_115":147},{"_142":143,"_144":143,"_145":146},{"_40":195,"_42":41,"_43":196,"_77":197,"_89":213,"_90":214,"_51":215},"00070a12-c9b5-456c-933f-a34188008f5b","4338ca26-1c49-4238-a5bb-9fde60d727ca",[198,201,204,207,209],{"_43":199,"_81":82,"_83":200},"a8d201c8-34f3-4067-b893-8fd92b3b8d28","I e III.",{"_43":202,"_81":87,"_83":203},"aaf010cc-cba2-421c-bfd5-9b6365a5af5e","I.",{"_43":205,"_81":184,"_83":206},"e0106468-f68b-44f7-bcf3-62cd776e468b","III.",{"_43":195,"_81":188,"_83":208},"I e II.",{"_43":210,"_81":211,"_83":212},"e3fbf328-7642-46c8-9194-fd73fd78506d","E","II e III.","No modelo linear simples, os estimadores MQO são βˆ = Σ(xi−x̄)(yi−ȳ)/Σ(xi−x̄)² e αˆ = ȳ − βˆ x̄. O item I expressa corretamente αˆ; o item II apresenta a forma canônica de βˆ; já o item III costuma omitir os desvios em torno das médias, ficando incorreto. Logo, somente I e II estão corretos.","Na forma ajustada do modelo de regressão, são, respectivamente, os estimadores de mínimos quadrados ordinários de α e β. Pode-se afirmar que:",[216],{"_43":135,"_57":58,"_59":60,"_136":137,"_138":139,"_111":140,"_113":140,"_45":217,"_115":147},{"_142":143,"_144":143,"_145":146},{"_40":219,"_42":41,"_43":220,"_77":221,"_89":41,"_90":233,"_51":234},"93b74a3c-668c-46db-9214-6f38b94fa3a9","e799b6de-9300-4d42-8737-ea78ba87f3d5",[222,225,227,230],{"_43":223,"_81":82,"_83":224},"6ca67477-0ef2-4fa0-8991-a76d9fbac3b8","Séries temporais.",{"_43":219,"_81":87,"_83":226},"Causal.",{"_43":228,"_81":184,"_83":229},"069b39e8-04b2-4756-a161-f70cb955bba7","Qualitativa.",{"_43":231,"_81":188,"_83":232},"6e71b453-d68b-4155-af7c-cf52373c61c7","Simulação.","

Este modelo de previsão assume inicialmente um modelo teórico que está conformado entre uma variável dependente (a ser estimada) e outra independente. Diante disso, assinale a alternativa que apresenta método descrito acima:

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Comentários