Browsing Economic and Social Review by Author "Geary, R. C."

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    • A visual test for a unit root: Geary's count of sign changes revisited 

      Honohan, Patrick; Geary, R. C. (Economic & Social StudiesDublin, 1996)
      Prompted by Geary's (1970) suggestion in a different context, the stationarity of a plotted time series can be assessed by simply counting the number of times the plot crosses the trend line linking the first and last ...

    • Determination of linear relations between systematic parts of variables with errors of observation the variances of which are unknown 

      Geary, R. C. (Economic & Social StudiesDublin, 1996)
      Given a sufficient number of instrumental variables significantly correlated with the investigational variables, consistent estimates of the coefficients of the linear relations can be determined (if they exist), without ...

    • Editorial preface 

      Boyle, Gerry; Geary, R. C. (Economic & Social StudiesDublin, 1996)
      This special issue of the Review marks the centenary of the birth of Roy Geary ? Ireland's greatest statistician ? who was born in Drumcondra, Dublin on 11 April, 1896 and died on 8 February, 1983. It is the third occasion ...

    • Geary's count of sign changes as a test of unit roots: some further evidence 

      Murphy, Anthony; Geary, R. C. (Economic & Social StudiesDublin, 1996)
      In 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 ...

    • More about Geary and the "Taxi" problem 

      Conniffe, Denis; Geary, R. C. (Economic & Social StudiesDublin, 1996)
      Geary's treatment of the "taxi" problem was recently re-examined by Spencer and Largey (1993). This paper investigates the topic further, partly to place Geary's estimator in the context of more general methods and also ...

    • R. C. Geary and the ESRI 

      Kennedy, Kieran A.; Geary, R. C. (Economic & Social StudiesDublin, 1993)
      R .C. Geary's association with The Economic and Social Research Institute (ESRI) was a long and fruitful one. He was the first Director of the Institute which began in 1960 as The Economic Research Institute (ERI), but by ...