Results 111 to 120 of about 444,551 (213)

MAPEAMENTO DO RISCO DE CONTAMINAÇÃO NO AQÜÍFERO LIVRE DO MUNICÍPIO DE PEREIRA BARRETO/SP

open access: yesRevista Águas Subterrâneas, 2004
Este trabalho tem o objetivo de mapear as áreas de risco potencial á contaminação das águas subterrâneas do município de Pereira Barreto. Devido a implantação da UHE de Três Irmãos, este município sofreu vários tipos de impactos, sendo um deles a ...
Rodrigo Dutra Gomes   +2 more
doaj  

Out-Of-The_Money Monte Carlo Simulation Option Pricing: the join use of Importance Sampling and Descriptive Sampling [PDF]

open access: yes
As in any Monte Carlo application, simulation option valuation produces imprecise estimates. In such an application, Descriptive Sampling (DS) has proven to be a powerful Variance Reduction Technique.
Eduardo Saliby   +2 more
core  

A Probabilistic Approach for Assessing the Significance of Contextual Variables in Nonparametric Frontier Models: an Application for Brazilian Banks [PDF]

open access: yes
This article presents an empirical application illustrating the use of a nonparametric frontier model relying on a probabilistic definition of the production frontier.
Geraldo da Silva e Souza   +1 more
core  

Evaluating Asset Pricing Models in a Fama-French Framework [PDF]

open access: yes
In this work we propose a methodology to compare different stochastic discount factor (SDF) proxies based on relevant market information. The starting point is the work of Fama and French, which evidenced that the asset returns of the U.S.
Carlos Enrique Carrasco Gutierrez   +1 more
core  

Combining Hodrick-Prescott Filtering with a Production Function Approach to Estimate Output Gap [PDF]

open access: yes
Many models were used to identify the factors affecting the demand for overnight funds by commercial banks. Theses models overcome overdispersion problems caused by excess of zeros found in the dataset. Generalized Linear Latent and Mixed Models (GLLAMM)
Marta Areosa
core  

Financial Instability and Credit Constraint: Evidence from the Cost of Bank Financing [PDF]

open access: yes
This paper examines the relation between the degree of firms’ financial constraint and the observed rise in the cost of bank financing during the global financial crisis of 2008.
Bruno S. Martins
core  

Characterizing the Brazilian Term Structure of Interest Rates [PDF]

open access: yes
This paper studies the Brazilian term structure of interest rates and characterizes how the term premia has changed over time. We employ a Kalman filter approach, which is extended to take into account regime switches and overlapping forecasts errors ...
Benjamin M. Tabak, Osmani T. Guillen
core  

Vírus Zika, uma doença emergente com potencial risco para a Saúde Pública

open access: yes, 2017
O vírus Zika é um flavivírus filogeneticamente relacionado com o vírus Dengue, vírus da Febre Amarela e vírus do Nilo Ocidental. A doença é considerada uma arbovirose emergente transmitida por mosquitos do género Aedes. A rápida disseminação do vírus e seu potencial epidémico são preocupantes, especialmente em territórios com circulação de outras ...
openaire   +1 more source

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