Esta dissertação destina-se a realizar um estudo sobre o mercado imobiliário de lançamentos residenciais, mais especificamente apartamentos, no Município de São Paulo, tendo como base a utilização de preços hedônicos. Este trabalho baseia-se, principalmente, na abordagem da Teoria do Consumidor, de Lancaster, bem como em estudos relativos à precificação hedônica, de Court e Griliches, e em aplicações relativas ao mercado imobiliário, como a de Aryeetey-Attoh. Por meio de uma pesquisa qualitativa com especialistas, para a definição das variáveis hedônicas explicativas, e de uma pesquisa quantitativa, para a coleta de 480 dados amostrais relativos a preços de lançamento compreendidos entre os meses de abril de 2002 e março de 2003 e atributos para cada faixa de renda distrital de São Paulo, aplicam-se as técnicas de regressão conhecidas como cross-section, onde algumas especificações semilogarítmicas são propostas, escolhendo-se, para cada faixa de renda, a que apresenta o melhor ajuste estatístico. O método proposto permite a verificação do “pacote" de atributos que é mais representativo para a valorização dos imóveis residenciais em lançamento no Município de São Paulo, possibilitando a comparação da importância relativa de cada um para cada faixa de renda distrital. Portanto, permite-se o estudo de estratégias e de gerenciamento de projetos, designados para cada tipo específico de empreendimento imobiliário, de acordo com as preferências dos consumidores e das características das localidades. / This study intends to make a research about the real estate market, more specifically new apartments, in the Municipality of Sao Paulo, using hedonic prices theory. This work is based on the approach to Consumer Theory, by Lancaster, on some hedonic price studies, by Court and Griliches, and on real estate market applications, like Aryeetey-Attoh´s. Using a qualitative research with specialists, to define the independent hedonic variables, and a quantitative research, to provide 480 sample data related to launching prices occurred between April 2002 and March 2003 and attributes for each segment of low, middle and high income in the Municipality of Sao Paulo, it is used the regression techniques known as cross-section, in which some semilogarithmic specifications are suggested, choosing, for each income, the one that offers the best statistic adjust. The proposed method allows the verification about which attributes interfere the most in the price of real estates in Sao Paulo and it compares the relative importance of each one of these attributes whenever there are changes in social classes. Thus, it allows the study of strategies and project management, designated to each kind of real estate, according to the consumers’ preferences and locality characteristics.

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This study demonstrates that financial analysts significantly affect short-term stock prices, by examining how non-accounting information particularly contained in analysts' forecasts contributes to the fluctuation of future stock returns. If current non-accounting information of future earnings is more unfavourable or more volatile, we could observe a larger shift in the current stock return. The empirical evidence strongly supports these theoretical predictions that stem from the combination of the accounting version of Campbell-Shiller model (Campbell and Shiller (1988) and Vuolteenaho (2002)) and Ohlson????s information dynamics (1995). In addition, the results are also valid for measures of both systematic and idiosyncratic volatilities.

Thesis (M.A.)--University of Chicago, Department of Economics. / Also available on the Internet.

<p>Vi vill med denna uppsats undersöka vilka faktorer som styr prisspridningen på den svenska e-handelsmarknaden. De faktorer som studerats är produktens pris, popularitet, bransch, antal säljare och i vilken period som materialet samlats in. Undersökningen kom fram till resultatet att samtliga faktorer, förutom perioden för datainsamling, är statistiskt säkerställda på ett eller flera av våra prisspridningsmått. Det innebär att fyra av de fem faktorer som vi studerat påverkar prisspridningen.</p>

Vi vill med denna uppsats undersöka vilka faktorer som styr prisspridningen på den svenska e-handelsmarknaden. De faktorer som studerats är produktens pris, popularitet, bransch, antal säljare och i vilken period som materialet samlats in. Undersökningen kom fram till resultatet att samtliga faktorer, förutom perioden för datainsamling, är statistiskt säkerställda på ett eller flera av våra prisspridningsmått. Det innebär att fyra av de fem faktorer som vi studerat påverkar prisspridningen.

A central result in price theory is the law of one price: prices of a homogeneous good sold at different locations should be equal. Empirical studies of the law of one price find that it is often violated. In my dissertation I explore the allocation problem that suppliers face when supplying multiple markets. I use the experimental method to examine the effect of an increase in the number of suppliers in a market, ceteris paribus, has on the allocation decisions of market participants. I also use the experimental method to investigate suppliers that are strategic and show that market concentration and transportation costs restrict the supplier’s ability to coordinate on an efficient equilibrium. A strategic supplier takes account his own effect on prices. Strategic supplies face a difficult strategy coordination problem. If they cannot solve it, then an inefficient outcome may result. Coordination failure may result in price dispersion across the markets. Resulting price signals do not inform suppliers who should respond and by how much. Price signals are not sufficient for suppliers to solve the strategy coordination problem. In the experiments, I observe that increasing the quantity of suppliers, that is the Herfindahl index of concentration, in the market will decrease the frequency of the equilibrium strategy to be played, holding other things constant. Increasing the number of firms in a market, ceteris paribus, increases price dispersion and coordination on an efficient market allocation is decreased. The experiments reveal that the ability of suppliers to coordinate is directly correlated with the optimization premium: the expected payoff difference between best responding to an opponents strategy and the payoff to an inferior response. The incentive is greater to best respond when the optimization premium is larger. Coordination at the equilibrium allocation is quicker.

Thesis (Ph. D.)--University of Oregon, 2002. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 93-96). Also available for download via the World Wide Web; free to University of Oregon users.

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