the effective use of the supply-and-demand concept, Weigel stated, might have enter into the image into the belated century that is 19th whenever US cities had been exploding in populace.

the effective use of the supply-and-demand concept, Weigel stated, might have enter into the image into the belated century that is 19th whenever US cities had been exploding in populace. The application of the supply-and-demand concept, Weigel stated, might have come right into the image in the belated century that...