Show simple item record

dc.contributor.authorMurphy, Anthony
dc.contributor.authorGeary, R. C.
dc.date.accessioned2012-08-27T11:30:13Z
dc.date.available2012-08-27T11:30:13Z
dc.date.issued1996
dc.identifier.citationMurphy, Anthony. 'Geary's count of sign changes as a test of unit roots: some further evidence'. - Economic & Social Review, Vol. 27, No. 4, July, 1996, pp. 389-396, Dublin: Economic & Social Research Institute
dc.identifier.issn0012-9984
dc.identifier.urihttp://hdl.handle.net/2262/64778
dc.description.abstractIn a recent issue of this journal, Honohan (1996) examined the perperformance of Geary's (1970) count of sign changes or x test as a test of unit roots. The test is based on counting the number of times the plot of a series crosses the trend line joining the first and last observations. The null hypothesis of a unit root is rejected when the number of crossings is "large". Honohan argues that the sign change test is a useful informal test mainly because of its simplicity ? it can be calculated by hand and the 95 per cent critical values may be approximated by twice the square root of t he sample size. In the abstract to his paper, Honohan suggests that, despite its simplicity, the test has surprisingly good power.en
dc.language.isoen
dc.publisherEconomic & Social Studies
dc.sourceEconomic & Social Reviewen
dc.subjectCount of sign changesen
dc.subjectUnit rootsen
dc.subjectQuantitative methodsen
dc.titleGeary's count of sign changes as a test of unit roots: some further evidence
dc.typeJournal Article
dc.publisher.placeDublinen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record