The Effects of Additive Outliers on Tests for Unit Roots and Cointegration
Bibliographic Data
| ID | 19419647 |
|---|---|
| Authors | Philip Hans Franses (0000-0002-2364-7777, Erasmus University Rotterdam), Niels Haldrup (0000-0003-0207-8234, Aarhus University) |
| Year | 1994 |
| Volume | 12 |
| Issue | 4 |
| Pages | 471-478 |
| Publication date | 1994-10-01 |
| Open Access | No |
| Type | ARTICLE |
| Venue | Journal of Business and Economic Statistics (JOURNAL) |
| Journal identifiers | ISSN: 0735-0015 • E-ISSN: 1537-2707 |
| Publisher | Informa UK Limited (PUBLISHER • GB) |
| DOI | 10.1080/07350015.1994.10524569 |
| OpenAlex | W2066888340 |
| Language | EN |
| Citations received | 14 |
| References cited | 23 |
This article discusses the properties of the univariate Dickey–Fuller test and the Johansen test for the cointegrating rank when there exist additive outlying observations in the time series. We provide analytical as well as numerical evidence that additive outliers may produce spurious stationary. Hence the Dickey–Fuller test will reject a unit root too frequently and the Johansen test will indicate too many cointegrating vectors. The results easily generalize to models with “temporary change” outliers. Through an empirical example we discuss how additive and temporary change outliers can be detected in practice, and we show how dummy variables can be used to remove the influence of such extreme observations
Augmented Dickey–Fuller test · Biology · Cointegration · Combinatorics · Econometrics · Error correction model · Johansen test · Multivariate statistics · Outlier · Spurious relationship · Statistics · Unit root · Unit root test · Univariate · Financial Risk and Volatility Modeling · Market Dynamics and Volatility · Mathematics · Monetary Policy and Economic Impact
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| Citations per year | 0.44 |
|---|---|
| Citation span | 1994 - 2023 (30) |
| Highly cited | No |