1982 volume 14(1) pages 75 – 94
doi:10.1068/a140075

Cite as:
Dunn R, 1982, "Parameter instability in models of local unemployment responses" Environment and Planning A 14(1) 75 – 94

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Parameter instability in models of local unemployment responses

R Dunn

Received 25 September 1980, in revised form 24 February 1981

Abstract. Following papers by Brechling and Thirlwall, a number of studies have investigated the response of local or regional unemployment series to changes in the national series by means of regression approaches. In this paper a number of statistical tests for regression instability over time are discussed, and then applied to the Brechling model of unemployment responses in thirty-nine local areas in the Severnside region. The results suggest marked instability in the regression over time, and moving window regression is introduced to track changes in the values of parameters. The spatial pattern of changing unemployment responses across the region is presented and discussed.

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