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Made available in DSpace on 2008-05-13T13:16:07Z (GMT). No. of bitstreams: 1 1432.pdf: 254042 bytes, checksum: 3330422753a442a9c3ae9c957665c5ca (MD5) Previous issue date: 2000-08-10 / Objetiva investigar alguns possíveis efeitos que interação entre a regulação tributária - mais especificamente aquela que diz respeito à tributação sobre o capital – e a inflação podem gerar sobre o bem-estar social. Para tal, inicialmente procuraremos estudar esses efeitos a partir de uma ótica de equilíbrio parcial, utilizando o arcabouço teórico sugerido por Felsdstein (1999). Alternativamente, empregaremos um modelo de equilíbrio geral, que é uma extensão do modelo de Sidrauski (1967) elaborado por Abel (1999).

Made available in DSpace on 2008-05-13T13:16:10Z (GMT). No. of bitstreams: 0 Previous issue date: 1995-09-21 / Nós investigamos conceito de âncora nominal de uma economia aberta analisamos comportamento dinâmico de algumas variáveis econômicas importantes tais como inflação desemprego taxa real de câmbio durante processo de desinflação. Utilizando uma versão do Modelo Mundell-Fleming onde inércia introduzida através de expectativas adaptativas nós confrontamos estabilização baseada na taxa de câmbio(âncora cambial) com àquela baseada no controle de algum agregado monetário(âncora monetária). Nós mostramos que embora âncora cambial possua um efeito inicial expansionista sobre nível de atividade econômica, oposto ocorrendo com âncora monetária, recessão necessária para derrubar inflação independe da âncora nominal adotada, concluindo que estratégia anti-inflacionária ótima depende das preferências intertemporais dos policy-makers isto é, de como eles desejam distribuir os custos da estabilização ao longo do tempo de modo maximizar bem-estar social.

Made available in DSpace on 2008-05-13T13:16:18Z (GMT). No. of bitstreams: 0 Previous issue date: 1985-09-26

Made available in DSpace on 2008-05-13T13:16:19Z (GMT). No. of bitstreams: 1 2264.pdf: 160091 bytes, checksum: f32e69fd30b9d8e06a715a2818f68d34 (MD5) Previous issue date: 2007-04-11 / After Modigliani and Miller (1958) presented their capital structure irrelevance proposition, analysis of corporate Önancing choices involving debt and equity instruments have generally followed two trends in the literature, where models either incorporate informational asymmetries or introduce tax beneÖts in order to explain optimal capital structure determination (Myers, 2002). None of these features is present in this paper, which develops an asset pricing model with the purpose of providing a positive theory of corporate capital structure by replicating main aspects of standard contractual practice observed in real markets. Alternatively, the imperfect market structure of the economy is tailored to match what is most common in corporate reality. Allowance for default on corporate debt with an associated penalty of seizure of Örmís future cash áows by creditors is introduced, for instance. In this context, a qualitative assessment of Önancial managersídecisions is carried out through numerical procedures.

Made available in DSpace on 2008-05-13T13:16:19Z (GMT). No. of bitstreams: 1 2205.pdf: 294058 bytes, checksum: 844fbd3ea6ec3d90a266fb1ee94d7a41 (MD5) Previous issue date: 2006-12-18 / The structure of protection across sectors is usually interpreted as the result of competition among lobbies to influence politicians, but little attention has been devoted to the importance of individual firms in this process. This paper builds a model incorporating firm heterogeneity into a lobbying setup `a la Grossman and Helpman (1994), in a monopolistic competitive environment. We obtain that increased sectorial dispersion cause a fall in equilibrium tariff provided that the exporter’s cutoff is above the mean of the distribution. Also, higher average productivity brings about a fall in the equilibrium tariff, whereas an increase in export costs cause an increase in the tariff. JEL Classification codes: D43, D7, F12, F13, L11