§ Mr. Hunter
asked the Secretary of State for Employment if he will explain in detail the meaning and import of the term "seasonal adjustment" in relation to statistics concerning vacancies for employment and concerning unemployment figures.
§ Mr. Alan Clark
A detailed explanation of the need to adjust seasonally the unemployment figures, and the method used, was published in the August 1979Employment Gazette, in an article "Seasonal adjustment of the unemployment series". A copy of this is in the Library. Vacancies are adjusted by the same method.