Freebase(0.00 / 0 votes)Rate this definition: Derived demand is a term in economics, where demand for a factor of production or intermediate good occurs as a result of the demand for another intermediate or final good.
10 best places to see this summerâs solar eclipse. On August 21st, a total solar eclipse will be visible to mainland America. Find out why it is drawing giddy excitement from the public, as well as astronomy gurus. On Aug. 21, a swath of the USA will plunge into darkness during a continent-wide total solar eclipse.
Solar eclipse 2015: what you need to know. Parts of the world will witness a solar eclipse on Friday â a rare phenomenon in which the sun is completely obscured by the moon. Hereâs everything you need to know about the background of the solar eclipse, where to view it and how.