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Journal ArticleDOI

Likelihood Analysis of the I(2) Model

Søren Johansen
- 01 Dec 1997 - 
- Vol. 24, Iss: 4, pp 433-462
TLDR
The I(2) model as discussed by the authors is defined as a submodel of the general vector autoregressive model, by two reduced rank conditions, and describes stochastic processes with stationary second difference.
Abstract
The I(2) model is defined as a submodel of the general vector autoregressive model, by two reduced rank conditions. The model describes stochastic processes with stationary second difference. A parametrization is suggested which makes likelihood inference feasible. Consistency of the maximum likelihood estimator is proved, and the asymptotic distribution of the maximum likelihood estimator is given. It is shown that the asymptotic distribution is either Gaussian, mixed Gaussian or, in some cases, even more complicated.

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Citations
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Book

The cointegrated VAR model : methodology and applications

TL;DR: In this paper, a model and relations in economics and economics and Econometrics are discussed. But the authors focus on the Cointegration rank and do not discuss the relationship between the model and the model.
Journal ArticleDOI

A representation theory for a class of vector autoregressive models for fractional processes

TL;DR: In this paper, a new vector autoregressive model defined from the fractional lag operator 1 − (1 − L)d was proposed and conditions in terms of the coefficients for the model to generate processes that are fractional of order zero.
Journal ArticleDOI

Likelihood analysis of seasonal cointegration

TL;DR: In this article, the error correction model for seasonal cointegration is analyzed and conditions are found under which the process is integrated of order 1 and cointegrated at seasonal frequency, and a representation theorem is given.
Journal ArticleDOI

An Econometric Analysis of I(2) Variables

TL;DR: A survey of the recent literature dealing with I(2) variables in economic time series, that is, processes that require to be differenced twice in order to become stationary, can be found in this paper.
OtherDOI

Vector autoregressive models

TL;DR: In this article, the authors consider the problem of separating long-run and short-run components of the data generation process (DGP) in a vector autoregressive model, where cointegration relations are not modelled explicitly although they may be present.
References
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Journal ArticleDOI

Statistical analysis of cointegration vectors

TL;DR: In this paper, the authors consider a nonstationary vector autoregressive process which is integrated of order 1, and generated by i.i.d. Gaussian errors, and derive the maximum likelihood estimator of the space of cointegration vectors and the likelihood ratio test of the hypothesis that it has a given number of dimensions.

Estimation and hypothesis testing of cointegration vectors in Gaussian vector autoregressive models / Søren Johansen

S Johansen
TL;DR: In this paper, the authors present the likelihood methods for the analysis of cointegration in VAR models with Gaussian errors, seasonal dummies, and constant terms, and show that the asymptotic distribution of the maximum likelihood estimator is mixed Gausssian.
Journal ArticleDOI

Estimation and hypothesis testing of cointegration vectors in gaussian vector autoregressive models

Søren Johansen
- 01 Nov 1991 - 
TL;DR: In this article, the authors derived the likelihood analysis of vector autoregressive models allowing for cointegration and showed that the asymptotic distribution of the maximum likelihood estimator of the cointegrating relations can be found by reduced rank regression and derives the likelihood ratio test of structural hypotheses about these relations.
Journal ArticleDOI

A simple estimator of cointegrating vectors in higher order integrated systems

James H. Stock, +1 more
- 01 Jul 1993 - 
TL;DR: In this paper, an efficient estimator of cointegrating vectors is presented for systems involving deterministic components and variables of differing, higher orders of integration. But the estimators are computed using GLS or OLS, and Wald Statistics constructed from these estimators have asymptotic x 2 distributions.
Posted Content

Likelihood-Based Inference in Cointegrated Vector Autoregressive Models

TL;DR: In this paper, the authors give a detailed mathematical and statistical analysis of the cointegrated vector autoregresive model, which has gained popularity because it can capture the short-run dynamic properties as well as the long-run equilibrium behaviour of many non-stationary time series.