Editing David Ricardo (section)

====Evolutionary growth theory====
Several distinctive groups have sprung out of the neo-Ricardian school. One is the evolutionary growth theory, developed notably by [[Luigi Pasinetti]], J.S. Metcalfe, Pier Paolo Saviotti, and Koen Frenken and others.<ref>Pasinetti, Luisi 1981 Structural change and economic growth, Cambridge University Press. J.S. Metcalfe and P.P. Saviotti (eds.), 1991, ''Evolutionary Theories of Economic and Technological Change'', Harwood, 275 pages. J.S. Metcalfe 1998, ''Evolutionary Economics and Creative Destruction'', Routledge, London. Frenken, K., Van Oort, F.G., Verburg, T., Boschma, R.A. (2004). ''Variety and Regional Economic Growth in the Netherlands – Final Report'' (The Hague: Ministry of Economic Affairs), 58 p.</ref><ref>{{citation |doi=10.1007/s00191-007-0081-5 |title=Export variety and the economic performance of countries |year=2008 |last1=Saviotti |first1=Pier Paolo |last2=Frenken |first2=Koen |journal=[[Journal of Evolutionary Economics]] |volume=18 |issue=2 |pages=201–218|hdl=1874/387420 |s2cid=154150526 |hdl-access=free }}</ref>

Pasinetti<ref>{{citation |author=Pasinetti, Luigi L. |title=Structural change and economic growth: a theoretical essay on the dynamics of the wealth of nations |publisher=Cambridge University Press |location=Cambridge, UK |year=1981 |isbn=0-521-27410-9 }}{{page needed|date=March 2022}}</ref><ref>{{citation |author=Pasinetti, Luigi L. |title=Structural economic dynamics: a theory of the economic consequences of human learning |publisher=Cambridge University Press |location=Cambridge |year=1993 |isbn=0-521-43282-0 }}{{page needed|date=March 2022}}</ref> argued that the demand for any commodity came to stagnate and frequently decline, demand saturation occurs. Introduction of new commodities (goods and services) is necessary to avoid economic stagnation.