Steinbeck switches to the second person in 'Why Soldier's Won't Talk' when he catalogs the responses of the soldier's he talked to about the effects of combat to make the experience more real, personal and authentic to the reader. He does this in the 'Grapes of Wrath' as well.
The producer is correctly perceived as a liaison between artistic and technical aspects of recording, with a healthy dose of business sense thrown into the mix.
Just add 750 and 400 to get 1150. 5th century means 400 yrs after bce.
The answer is the society.
Economics is focused on the problem of the society which is created by a world with limited resources and people with unlimited needs and wants.