Consider the nation prior to the advent of radio. Given our penchant now for instantaneous information, compare/contrast information gathering between then and now. How significant was the invention of “clear channel” and network radio?

Ifound this on google “the existence of agglomeration economies is central to the explanation of how cities increase in size and population, which places the phenomenon on a larger scale. the concentration of economic activity in cities is one reason for their development and growth.” i hope this you for what your looking for.