Abstract :
This article examines how voters attribute credit and blame to governments for policy success and
failure, and how this affects their party support. Using panel data from Britain between 1997 and
2001 and Ireland between 2002 and 2007 to model attribution, the interaction between partisanship
and evaluation of performance is shown to be crucial. Partisanship resolves incongruities between
party support and policy evaluation through selective attribution: favoured parties are not blamed for
policy failures and less favoured ones are not credited with policy success. Furthermore, attributions
caused defections from Labour over the 1997–2001 election cycle in Britain, and defections from the
Fianna Fa´ il/Progressive Democrat coalition over the 2002–07 election cycle in Ireland. Using models
of vote switching and controlling for partisanship to minimize endogeneity problems, it is shown that
attributed evaluations affect vote intention much more than unattributed evaluations. This result
holds across several policy areas and both political systems.