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Alecos Papadopoulos

PhD in Economics with a heavy dose of, and a not-so-secret love for, Econometrics and Statistics. The PhD thesis is a monograph on the Two-tier Stochastic Frontier model/framework, "The Two-tier Stochastic Frontier (2TSF) framework: Theory and Applications, Models and Tools".

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Top posts (231) All Questions Answers | Votes Newest

54 Why the sum of residuals equals 0 when we do a sample regression by OLS? Sep 17 '13
38 Identity for simple 1D random walk Jan 8 '14
36 how to derive the mean and variance of a Gaussian Random variable? Oct 9 '13
27 Derivation of the density function of student t-distribution from this big integral. Aug 31 '13
14 How to prove $\int_0^1\tan^{-1}\left[\frac{\tanh^{-1}x-\tan^{-1}x}{\pi+\tanh^{-1}x-\tan^{-1}x}\right]\frac{dx}{x}=\frac{\pi}{8}\ln\frac{\pi^2}{8}?$ Dec 9 '13
12 Non-zero Conditional Differential Entropy between a random variable and a function of it Jul 28 '13
10 Teaser or fun calc equation to surprise husband (physicist/EE) at work Sep 12 '13
8 Can the maximum likelihood estimator be unbiased and fail to achieve Cramer-Rao lower bound? May 26 '14
8 Why the expected value of the error when doing regression by OLS is 0? Sep 18 '13
8 Why would I use Bayes' Theorem if I can directly compute the posterior probability? Aug 30 '13
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