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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Consumo de bens duráveis e poupança em uma nova trajetória de comportamento do consumidor brasileiro

Bittencourt, Viviane Seda 27 May 2011 (has links)
Submitted by Viviane Seda Bittencourt (viviane.bittencourt@fgv.br) on 2011-08-18T14:38:47Z No. of bitstreams: 1 Dissertação Final_Viviane Seda Bittencourt.pdf: 1184289 bytes, checksum: d29df7b21fc17e4818ecc2e0d98b2646 (MD5) / Approved for entry into archive by Vitor Souza (vitor.souza@fgv.br) on 2011-08-18T17:25:44Z (GMT) No. of bitstreams: 1 Dissertação Final_Viviane Seda Bittencourt.pdf: 1184289 bytes, checksum: d29df7b21fc17e4818ecc2e0d98b2646 (MD5) / Made available in DSpace on 2011-09-20T20:45:24Z (GMT). No. of bitstreams: 1 Dissertação Final_Viviane Seda Bittencourt.pdf: 1184289 bytes, checksum: d29df7b21fc17e4818ecc2e0d98b2646 (MD5) Previous issue date: 2011-05-27 / O trabalho avalia a dinâmica descrita pelo consumo de bens duráveis e poupança dos consumidores brasileiros entre setembro de 2005 e abril de 2011 e contribui com a literatura ao utilizar como ferramenta de análise um modelo autoregressivo com valor limite endógeno e dados qualitativos da pesquisa Sondagem de Expectativas do Consumidor Brasileiro, da FGV. Indicadores qualitativos para essas duas variáveis foram calculados e a metodologia proposta permitiu investigar, simultaneamente, a linearidade e estacionaridade de suas trajetórias. Os resultados sugerem, em ambos os casos, uma dinâmica não-linear com raiz unitária parcial. Adicionalmente, a estacionaridade constatada a partir de um valor limite estimado de 3,3 pontos percentuais para o Indicador de Compras de Bens Duráveis e de 3,6 pontos percentuais para o Indicador de Poupança permitem classificar seus históricos com indícios de saturação da capacidade de poupança e consumo dos indivíduos. / This paper evaluates the dynamics described by the Brazilian consumer’s savings and consumption of durables between September 2005 and April 2011, and contributes to the literature applying qualitative data from FGV Consumer Survey to an endogenous threshold autoregressive model. Qualitative indicators for these two variables were developed and the methodology allowed us to investigate, simultaneously, the stationarity and linearity of their behaviors. The results suggest a non-linear dynamic with partial unit root for these two indicators. In addition, the stationarity observed from an estimated threshold of 3.3 bp for the indicator of purchases of durables and 3.6 bp to the indicator of savings show evidences of saturation of savings and consumption individual capacities.
2

Essays on Inflation Expectations, Heterogeneous Agents, and the Use of Approximated Solutions in the Estimation of DSGE models

Ormeño Sánchez, Arturo 21 September 2011 (has links)
In this thesis I evaluate the departures of three common assumptions in macroeconomic modeling and estimation, namely the Rational Expectations (RE) hypothesis, the representative agent assumption and the use of first-order approximations in the estimation of dynamic stochastic general equilibrium (DSGE) models. In the first chapter I determine how the use of survey data on inflation expectations in the estimation of a model alters the evaluation of the RE assumption in comparison to an alternative assumption, namely learning. In chapter two, I use heterogeneous agent models to determine the relationship between income volatility and the demand for durable goods. In the third chapter I evaluate if the use of first-order approximations in the estimation of a model could affect the evaluation of the determinants of the Great Moderation. / En esta tesis analizo desvíos de tres supuestos comunes en la elaboración y estimación de modelos macroeconómicos. Estos supuestos son la Hipótesis de Expectativas Racionales (ER), el supuesto del Agente Representativo, y el uso de aproximaciones de primer orden en la estimación de los modelos de equilibrio general. En el primer capítulo determino como el empleo de datos de expectativas de inflación en la estimación de un modelo puede alterar la evaluación del supuesto de ER en comparación a un supuesto alternativo como learning. En el segundo capítulo, utilizo modelos de agentes heterogéneos para determinar la relación entre la volatilidad de los ingresos y la demanda de bienes durables. En el tercer capítulo, analizo si el uso de aproximaciones de primer orden afecta la evaluación de los determinantes de la Gran Moderación.

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