id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
2z10wq00467	Cesar A Hidalgo	Three empirical studies on the aggregate dynamics of humanly driven complex systems	2011		.txt	text/plain	214	10	42	Complex systems are characterized by having emergent properties that cannot be explained from their large number of interacting and heterogeneous components. Different aspects of human society can be described as a complex system, as large numbers of people aggregate into a host of complex structures.	cache/2z10wq00467.txt	txt/2z10wq00467.txt