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Este artigo propoe uma equacao para a demanda por saldos reais de moeda em processos de inflacao elevada, que estende e generaliza o celebrado modelo de Cagan para as hiperinflacoes. O modelo e testado aplicando-o aos dados da hiperinflacao alema e pela analise da experiencia inflacionaria do...
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This paper tests the occurrence of rational bubbles in the exchange rate of Brazil, Russia, India, China and South Africa (the ‘BRICS' countries group) against the US dollar. We consider bubbles of the periodically recurring variety, and assume that the fundamental value follows a modified PPP...
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