Tag: Variance
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A recent article on Local Projections
In a recent article published in the Journal of econometrics, we have some further insights about the bias-variance trade-off between IRF (Impulse Response Function) produced by…
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Illustrating that the sample variance bias decreases with the sample size using R and Mathematica
In my previous blog, I recall that we can demonstrate in a few steps that the sample variance is an unbiased estimator of the population variance…
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Illustrating the sample variance bias with R and Mathematica
In my previous blog, I recall that we can demonstrate in a few steps that the sample variance is an unbiased estimator of the population variance…
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Moments of a discrete distribution with Mathematica
One way to convince some students that it is simple to demonstrate the value of the two first moments of a discrete distribution is to use…
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Unbiased estimator for population variance: clearly explained!
Estimator: A statistic used to approximate a population parameter. Sometimes called a point estimator. Estimate: The observed value of the estimator. Unbiased estimator: An estimator whose…