Du Neng: He first noticed the influence of transportation cost, and pointed out that the distance from the consumer market had a great influence on the layout of crops. Based on this, the hypothetical isolated country is divided into six concentric agricultural circles.
Weber: Inherited Du Neng's thought, added labor cost factor and agglomeration factor, and thought that the location originally selected according to transportation cost would change. He systematized the industrial location theory for the first time and comprehensively analyzed the freight, labor cost and agglomeration effect.
Chris taylor and Liao Shi: The lowest production cost does not necessarily mean the maximum profit, and it is not the choice point of the optimal location of the manufacturer; The market is playing an increasingly important role in production activities, and the location theory with the market as the center and profit maximization as the goal has been put forward.