764. Demand-led growth with endogenous innovation

Working paper N. 764 Novembre 2017

Mauro Caminati

DEPS, Università di Siena

Serena Sordi

DEPS, Università di Siena

Abstract

This paper contributes to the recent macro-dynamics literature on demand-led growth, that borrows insights from the idea expressed long ago by J. Hicks (1950) that Harrodian instability may be tamed by a source of autonomous expenditure in the economy. Contrary to the other contributions in this literature, autonomous expenditure is not exogenous, but is driven by a flow of profit-seeking R&D and innovation expenditures, that raise labour productivity through time. If the state of distribution, hence the wage share, is exogenously fixed and constant, the model gives rise to a macro-dynamics in a two dimensional state space, that may converge to, or give rise to limit cycles around, an endogenous growth path. An exogenous rise of the profit share exerts negative e¤ects on long-run growth and employment, showing that growth is wage led.
Keywords
wage-led growth; endogenous autonomous expenditure; labour-saving technological progress: limit cycles.
Jel Codes
E11; E12; O41