In econometrics, the autoregressive conditional heteroskedasticity (ARCH) model is a statistical model for time series data that describes the variance...
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In statistics, econometrics, and signal processing, an autoregressive (AR) model is a representation of a type of random process; as such, it can be used...
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variances are important parts of autoregressive conditional heteroskedasticity (ARCH) models. The conditional variance of a random variable Y given another...
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In the statistical analysis of time series, autoregressive–moving-average (ARMA) models are a way to describe a (weakly) stationary stochastic process...
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Median (section Conditional median)
{\displaystyle t\mapsto F_{X|Y=y}^{-1}(t)} is the inverse of the conditional cdf (i.e., conditional quantile function) of x ↦ F X | Y ( x | y ) {\displaystyle...
62 KB (7,974 words) - 14:03, 22 November 2024
Homoscedasticity and heteroscedasticity (redirect from Heteroskedasticity)
White, Halbert (1980). "A heteroskedasticity-consistent covariance matrix estimator and a direct test for heteroskedasticity". Econometrica. 48 (4): 817–838...
27 KB (3,191 words) - 23:32, 30 August 2024
Likelihood function (redirect from Conditional likelihood)
interpreted within the context of information theory. Bayes factor Conditional entropy Conditional probability Empirical likelihood Likelihood principle Likelihood-ratio...
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Continuous uniform distribution (section Example 2. Using the continuous uniform distribution function (conditional))
Park, Sung Y.; Bera, Anil K. (2009). "Maximum entropy autoregressive conditional heteroskedasticity model". Journal of Econometrics. 150 (2): 219–230. CiteSeerX 10...
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Correlogram Autocovariance Autoregressive conditional duration Autoregressive conditional heteroskedasticity Autoregressive fractionally integrated moving...
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changes of variance over time (heteroskedasticity). These models represent autoregressive conditional heteroskedasticity (ARCH) and the collection comprises...
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role in data analysis aimed at identifying the extent of the lag in an autoregressive (AR) model. The use of this function was introduced as part of the Box–Jenkins...
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Park, Sung Y.; Bera, Anil K. (2009). "Maximum entropy autoregressive conditional heteroskedasticity model" (PDF). Journal of Econometrics. 150 (2). Elsevier:...
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Vector autoregression (redirect from Vector autoregressive model)
process model. VAR models generalize the single-variable (univariate) autoregressive model by allowing for multivariate time series. VAR models are often...
22 KB (3,542 words) - 03:58, 20 January 2025
{Var} [X\mid Y])+\operatorname {Var} (\operatorname {E} [X\mid Y]).} The conditional expectation E ( X ∣ Y ) {\displaystyle \operatorname {E} (X\mid Y)}...
59 KB (10,189 words) - 21:12, 3 February 2025
as one of the parameters. As another example, consider a first-order autoregressive model, defined by xi = c + φxi−1 + εi, with the εi being i.i.d. Gaussian...
42 KB (5,483 words) - 14:30, 15 February 2025
ISBN 9780412039911. Park SY, Bera AK (2009). "Maximum entropy autoregressive conditional heteroskedasticity model". Journal of Econometrics. 150 (2): 219–230. doi:10...
55 KB (6,358 words) - 19:28, 27 January 2025
Park, Sung Y.; Bera, Anil K. (2009). "Maximum entropy autoregressive conditional heteroskedasticity model" (PDF). Journal of Econometrics. 150 (2): 219–230...
83 KB (12,195 words) - 14:40, 12 February 2025
Cross-correlation (XCF) ARMA model ARIMA model (Box–Jenkins) Autoregressive conditional heteroskedasticity (ARCH) Vector autoregression (VAR) Frequency domain...
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Logistic regression (redirect from Conditional logit analysis)
be to predict the likelihood of a homeowner defaulting on a mortgage. Conditional random fields, an extension of logistic regression to sequential data...
127 KB (20,641 words) - 16:46, 9 February 2025
subpopulations defined by X = 1 and X = 0 are defined in terms of the conditional probabilities given X, i.e., P(Y |X): Y = 1 Y = 0 X = 1 p 11 p 11 + p...
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commonly, the conditional median or some other quantile is used. Like all forms of regression analysis, linear regression focuses on the conditional probability...
75 KB (10,428 words) - 07:51, 10 February 2025
Cross-correlation (XCF) ARMA model ARIMA model (Box–Jenkins) Autoregressive conditional heteroskedasticity (ARCH) Vector autoregression (VAR) Frequency domain...
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standard deviation of a slice of the multivariate distribution (i.e. the conditional distribution) along the line in the direction of the unit vector η ^...
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(X_{1}\mid X_{2}=x_{2})=1-\rho ^{2};} thus the conditional variance does not depend on x2. The conditional expectation of X1 given that X2 is smaller/bigger...
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Granger causality analysis is usually performed by fitting a vector autoregressive model (VAR) to the time series. In particular, let X ( t ) ∈ R d × 1...
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elements of the matrix are equal to each other. On the other hand, an autoregressive matrix is often used when variables represent a time series, since correlations...
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(2003). "Time-series econometrics: Cointegration and autoregressive conditional heteroskedasticity". Advanced Information on the Bank of Sweden Prize in...
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Park, Sung Y.; Bera, Anil K. (2009). "Maximum entropy autoregressive conditional heteroskedasticity model" (PDF). Journal of Econometrics. 150 (2): 219–230...
66 KB (9,067 words) - 16:28, 14 February 2025
(see linear regression), this allows the researcher to estimate the conditional expectation (or population average value) of the dependent variable when...
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Cross-correlation (XCF) ARMA model ARIMA model (Box–Jenkins) Autoregressive conditional heteroskedasticity (ARCH) Vector autoregression (VAR) Frequency domain...
91 KB (10,677 words) - 18:17, 14 February 2025