Servicization with skill premium in the digital economy

Purpose - The purpose of this paper is to examine an endogenous growth model, as a component of a broader study of servicization with skill premium and its policy implications in the evolving digital economy. Design/methodology/approach - This paper develops a two-sector endogenous growth model which allows for the observed characteristics of digitally empowered structural changes. Specifically, the driving force of economic growth is the expanding variety of intermediate services as a consequence of innovation in services. The introduction of new intermediate services specifically contributes to total factor productivity in the production of service sector, and thus an uneven growth path with skill premium toward a service economy generally exists. Findings - The principal finding of this paper is that the digitally empowered expanding variety of intermediate services due to innovation contributes significantly to total factor productivity in the production of service sector, and thus a servicization with skill premium generally exists along a steady-state path. In addition, this paper derives an optimal innovation policy to rule out the market failures due to innovation externality and market power in monopolistic competition conditions, and shows the Rybczynski effects of exogenous endowment changes in the evolving digital economy. Originality/value - The principal contribution of this paper is to determine how unbalanced endogenous growth along a steady-state path is linked with a service economy with skill premium in the evolving digital economy. In addition to this analysis, this paper provides policy implications - namely, that a positive but finite innovation subsidy can achieve the social optimum in the digital economy, and that an exogenous increase in high-skilled labor can speed up a digitally empowered economic growth.