ولﻻطﻻع على التفاصيل انظر &quot; The Origins of Endogenous Growth &quot; و &quot; P. Romer, Journal of Economic Perspectives (Winter, 1994) &quot; .
Более подробно см. P. Romer, &quot; The origins of endogenous growth &quot; , Journal of Economic Perspective (winter 1994).