摘要:In this article we address various issues raised by
the evaluation of the R&D tax credit policy. We
first consider the studies that estimate the direct
effects of the tax credit on R&D inputs. We discuss
results obtained through different approaches and
methods and show that they give a contrasted picture
of the policy’s effectiveness. Next we argue that a
comprehensive evaluation of the R&D tax credit
should include other outcomes and present studies
focussing on them. We also initiate a very tentative
meta-analysis to obtain a more synthetic view on
the various evaluation results. We finally conclude
that harmonization and increased comparability in
evaluation studies would be useful to bridge the
gap between evaluation and policy design and
implementation.