Until now, the empirical evidence about the existence of policy induced innovation effects is still lacking and this may be attributed to a variety of reasons outside the sparsity of models (e.g. long-term policy uncertainty and exogenous drivers of (directed) innovation).
Do sada, empirijski dokazi o postojanju učinaka inovacija izazvanih politikom još uvek nedostaju i to se može pripisati različitim razlozima izvan retkih modela (npr. dugoročna politička nesigurnost i egzogeni pokretači (usmerenih) inovacija).