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5
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1
answer
567
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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? …
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 $E[e_i]=0$, $\beta,xi\in R^p$. …
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 …
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 …
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. …
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 $i=1,...,k$? …
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 $\bar{X}$ = $\sum X_i/n$ = ($2+1+\sqrt5+\sqrt2)/4 = 1.66$. …
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. …
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? …
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. …
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? …
1
vote
1
answer
92
views
Method of moments to estimate a parameter
Use the method of moments to estimate the parameter $\theta$. …
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. …
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? …
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? …