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Results for method of moments
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5 votes
1 answer
567 views

Types of moments used in the method of moments?

In Wikipedia, the method of moments uses only ordinary moments: One starts with deriving equations that related the population moments (i.e., the expected values of powers of the random variable … under consideration) to the parameters of interest What if the method of moments uses other types of moments, such as central moments or standardized moments? …
Tim's user avatar
  • 19.8k
3 votes
2 answers
6k views

Method of moments for linear regression?

I have been reading about the method of moments, and now I understand how to obtain the method of moments estimator for a random sample $x_1,...,x_n$ from a distribution $f(x;\theta)$, in the multiparameter … However, I fail to see how to formulate the method of moments for the linear regression model $$y_i = x_i^T\beta + e_i,$$ where $E[e_i]=0$, $\beta,xi\in R^p$. …
Goro's user avatar
  • 31
0 votes
2 answers
236 views

Generalized Method of Moments

I was looking for a book that could explain me well the Generalized Method of Moments, its mathematical nuances, and even have a look to the empirical side, maybe with some guided exercises with Stata …
james42's user avatar
  • 219
4 votes
1 answer
3k views

Method of moments for t-distribution

The parameters of a t distribution can be estimated via maximum-likelihood estimation (ML) or method of moments (MM) If we use the method of moments we have: $$\mu=E(R)$$ $$\sigma^2=V(R)=\frac{\beta …
Stat Tistician's user avatar
2 votes
1 answer
249 views

Poisson Process Method of Moments

Use the method of moments to obtain an estimate for the total population. … The method of moments is a way to estimate the parameters by gathering a system of equations using empirical moments and setting them equal to the actual moments. …
hkj447's user avatar
  • 447
3 votes
1 answer
434 views

Generalize the usage of moments in method of moments?

In Method of Moments for estimation, if there are $k$ parameters to estimate, we usually consider $i$-th moments, $i=1,...,k$, so that we have k equations for k unknowns. … Also would it be better if we choose moments of other orders, instead of $i=1,...,k$? …
Tim's user avatar
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4 votes
1 answer
148 views

Method of Moments of Uniform Distribution

Let $x_1=2, x_2 = 1, x_3 = \sqrt5, x_4 = \sqrt2$ be the observed values of a random sample of size 4 from a uniform distribution $U(-\theta, \theta)$ where $\theta>0$. … Then the method of moments estimate of $\theta$ is? a) 1 b) 2 c) 3 d) 4 The way I approached this question is: The first method of moment is $\bar{X}$ = $\sum X_i/n$ = ($2+1+\sqrt5+\sqrt2)/4 = 1.66$. …
Rhea Agarwal's user avatar
1 vote
1 answer
361 views

Some questions about the Generalized Method of Moments

Here are three (somewhat related) questions about the (Generalized) Method of Moments. I have only just today started studying this method. … understand why this equation is different for the Generalized method, compared to the (non-generalized) method of moments. …
user56834's user avatar
  • 2,987
2 votes
0 answers
370 views

Method of moments as non-parametric model

In Wikipedia article (https://en.wikipedia.org/wiki/Nonparametric_statistics) about nonparametric statistics there is "Method of moments (statistics) with polynomial probability distributions" listed as … How method of estimation parameters can be non-parametric? Parenthetically, is there any difference between "non-parametric" and "nonparametric"? Which is more common/correct? …
Alexander Golys's user avatar
0 votes
0 answers
52 views

OLS and the Method of Moments estimator

I have been taught that the Method of Moments Approach could be used to obtain estimates of a bivariate regression of the form y = B0 + B1x + u. … Which distribution are these 2 conditions moments of ? I read that the definition of moments of a distribution are expectations of the powers of the random variable. …
johnmaynard's user avatar
24 votes
3 answers
3k views

What is the logic behind method of moments?

Why in "Method of Moments", we equate sample moments to population moments for finding point estimator? Where is the logic behind this? …
user 31466's user avatar
  • 1,427
1 vote
1 answer
92 views

Method of moments to estimate a parameter

Use the method of moments to estimate the parameter $\theta$. …
JaviOverflow's user avatar
5 votes
1 answer
2k views

Principle of Analogy and Method of Moments

I am studying method of moments and GMM in the context of econometrics. Can someone explain on intuitive level, what does it mean to match moments? … Method of moments is exactly exploiting this condition. The basic principle of MoM is to choose the parameter estimate so that the corresponding sample moments are also zero. …
Frank Swanton's user avatar
0 votes
1 answer
70 views

Method of moments for the Logarithmic/Log-Series distribution

I'm looking for some more insights in applying the method of moments for the Logaritmic (or also called Log-Series) distribution. … There is also no literature I can find on applying the method of moments for the Logarithmic distribution. Does anyone have an idea how to apply the method of moments for this distribution? …
Steven01123581321's user avatar
18 votes
1 answer
6k views

What is the difference/relationship between method of moments and GMM?

Can someone explain to me the difference between method of moments and GMM (general method of moments), their relationship, and when should one or the other be used? …
Vivi's user avatar
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