Results 81 to 90 of about 75,182 (196)

truncSP: An R Package for Estimation of Semi-Parametric Truncated Linear Regression Models

open access: yesJournal of Statistical Software, 2014
Problems with truncated data occur in many areas, complicating estimation and inference. Regarding linear regression models, the ordinary least squares estimator is inconsistent and biased for these types of data and is therefore unsuitable for use ...
Maria Karlsson, Anita Lindmark
doaj   +1 more source

A Note on Bias in First-Differenced AR(1) Models [PDF]

open access: yes
In this note, we derive the finite sample bias of the modified ordinary least squares (MOLS) estimator, which was suggested by Wansbeek and Knaap (1999) and reconsidered by Hayakawa (2006a,b). From the formula for the finite sample bias, we find that the
Kazuhiko Hayakawa
core  

Aplikasi Model Dinamik Pada Bursa Efek [PDF]

open access: yes, 2008
Dalam makalah ini dibahas: (1) sifat estimator dari parameter model linier , (2)sifat estimator dari parameter model dinamik , dan (3) aplikasi model dinamik .
Joko, Purwanto
core  

Wavelet Estimation of Time Series Regression with Long Memory Processes [PDF]

open access: yes
This paper studies the estimation of time series regression when both regressors and disturbances have long memory. In contrast with the frequency domain estimation as in Robinson and Hidalgo (1997), we propose to estimate the same regression model with ...
Haibin Wu
core  

Nonlinear Cointegration, Misspecification and Bimodality [PDF]

open access: yes
We show that the asymptotic distribution of the ordinary least squares estimator in a cointegration regression may be bimodal. A simple case arises when the intercept is erroneously omitted from the estimated model or in nonlinear-in-variables models ...
Eduardo Mendes   +2 more
core  

More efficient tests robust to heteroskedasticity of unknown form [PDF]

open access: yes
In the presence of heteroskedasticity of unknown form, the Ordinary Least Squares parameter estimator becomes inefficient and its covariance matrix estimator inconsistent.
Emmanuel Flachaire
core  

Least Median of Squares Estimation by Optimization Heuristics with an Application to the CAPM and Multi Factor Models [PDF]

open access: yes
For estimating the parameters of models for financial market data, the use of robust techniques is of particular interest. Conditional forecasts, based on the capital asset pricing model, and a factor model are considered.
Chris Sharpe   +2 more
core  

The finite-sample effects of VAR dimensions on OLS bias, OLS variance, and minimum MSE estimators: Purely nonstationary case [PDF]

open access: yes, 2004
Vector autoregressions (VARs) are an important tool in time series analysis. However, relatively little is known about the nite-sample behaviour of parameter estimators.
Lawford, S, Stamatogiannis, M P
core  

Conditional inference for possibly unidentified structural equations [PDF]

open access: yes
The possibility that a structural equation may not be identified casts doubt on the measures of estimator precision that are normally used. We argue that the observed identifiability test statistic is directly relevant to the precision with which the ...
Forchini, G., Hillier, G.H.
core  

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