Union Membership and Age: The Inverted U-Shape Hypothesis under Test

Claus Schnabel () and Joachim Wagner ()

No 3842, IZA Discussion Papers from Institute for the Study of Labor (IZA)

Abstract: In this note we cast some doubt on the claim put forward by David Blanchflower (2007) that the probability of being unionized follows an inverted U-shaped pattern in age with a maximum in the mid- to late 40s. By using a special test for an inverted U-shaped pattern that has not been applied to the age-membership nexus before, and by constructing exact confidence intervals for the maximum value, we demonstrate that at least for West Germany Blanchflower's hypothesis does not hold. Our findings suggest that more definitive evidence is needed before the existence of international unionization-age patterns can be taken for granted.

Keywords: unionization; age; inverted U-shape; Germany (search for similar items in EconPapers)
JEL-codes: J51 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-age and nep-bec
Date: 2008-11
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Working Paper: Union Membership and Age: The inverted U-shape hypothesis under test (2008)
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