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en-wikipedia-org-4485		Economic growth - Wikipedia			.html	text/html	14512	1733	61	Increases in labor productivity (the ratio of the value of output to labor input) have historically been the most important source of real per capita economic growth.[10][11][12][13][14] "In a famous estimate, MIT Professor Robert Solow concluded that technological progress has accounted for 80 percent of the long-term rise in U.S. per capita income, with increased investment in capital explaining only the remaining 20 percent."[15] Economic growth has traditionally been attributed to the accumulation of human and physical capital and the increase in productivity and creation of new goods arising from technological innovation.[17] Further division of labour (specialization) is also fundamental to rising productivity.[18] Specifically, "democracy increases future GDP by encouraging investment, increasing schooling, inducing economic reforms, improving public goods provision, and reducing social unrest."[71] UNESCO and the United Nations also consider that cultural property protection, high-quality education, cultural diversity and social cohesion in armed conflicts are particularly necessary for qualitative growth.[72]	./cache/en-wikipedia-org-4485.html	./txt/en-wikipedia-org-4485.txt