Showing 1 - 10 of 6,942
, increasing statistical power, reducing bias and enhancing credibility, meta-analysis is widely regarded as 'best evidence …
Persistent link: https://www.econbiz.de/10012034162
In this paper, we show that conditions derived under the CAPM ensure only weak exogeneity in a linear regression setting. Since strong exogeneity is not guaranteed, the OLS estimator of CAPM beta is only consistent but not necessarily unbiased. We provide empirical evidence that individual daily...
Persistent link: https://www.econbiz.de/10012935615
nonlinearity of the problem. We present a penalty for the objective function that reduces the bias in the resulting point estimates … practice. The form of the penalty also provides interesting intuition into how the bias reduction is working. We present … simulation results that suggest that the penalized optimization approach may substantially reduce the bias in nonlinear fixed …
Persistent link: https://www.econbiz.de/10014027743
When estimating the parameters of a process, researchers can choose the reference unit of time (unit period) for their study. Frequently, they set the unit period equal to the observation interval. However, I show that decoupling the unit period from the observation interval facilitates the...
Persistent link: https://www.econbiz.de/10009321240
When estimating the parameters of a process, researchers can choose the reference unit of time (unit period) for their study. Frequently, they set the unit period equal to the observation interval. However, I show that decoupling the unit period from the observation interval facilitates the...
Persistent link: https://www.econbiz.de/10010933408
This paper studies asymptotically the bias of the fixed effect (FE) estimator induced by cross-section heterogeneity in …) asymptotically, the heterogeneity bias of the FE may be more or less severe in VAR specifications than in standard dynamic panel data …
Persistent link: https://www.econbiz.de/10012783020
magnitude of bias of (generalized) MM estimators tends to increase with the number of moment conditions exploited. For various … feedbacks none of the techniques examined dominates. However, a simple bias corrected LS estimator which presupposes strict …
Persistent link: https://www.econbiz.de/10014104029
We provide analytical formulae for the asymptotic bias (ABIAS) and mean squared error (AMSE) of the IV estimator, and … construct a number of bias corrected OLS and IV estimators, which we show to be consistent under a sequential asymptotic scheme …. These bias-corrected estimators are also robust, in the sense that they remain consistent in a conventional asymptotic setup …
Persistent link: https://www.econbiz.de/10014030882
Measuring bias is important as it helps identify flaws in quantitative forecasting methods or judgmental forecasts. It … can, therefore, potentially help improve forecasts. Despite this, bias tends to be under represented in the literature …: many studies focus solely on measuring accuracy. Methods for assessing bias in single series are relatively well known and …
Persistent link: https://www.econbiz.de/10013314570
This paper examines alternative forms of match bias arising from earnings imputation. Wage equation parameters are … imputation match criteria (e.g., union status) are severely biased. Related forms of match bias arise with respect to attributes … used as match criteria, but matched imperfectly. For example, an imperfect match on schooling creates bias that flattens …
Persistent link: https://www.econbiz.de/10010267423