The use of fiscal policy instruments to stimulate private RD is widespread and important in some countries like Spain. In this paper we explore the effectiveness of RD tax incentives on knowledge capital accumulation in Spanish manufacturing firms using an unbalanced panel and compare the...

This paper introduces dynamics in the RD to innovation and innovation to productivity relationships, which have mostly been estimated on cross-sectional data. It considers four nonlinear dynamic simultaneous equations models that include individual effects and idiosyncratic errors correlated...