Railroad industry is considered as typical natural monopoly trade.鐵路行業(yè)被認(rèn)為是典型的自然壟斷行業(yè).Under Scott, Carnegie learned all about the railroad industry and later became a superintendent himself.為史考特工作時(shí), 卡內(nèi)基學(xué)到了所有與鐵路工業(yè)有關(guān)的知識(shí)并于稍后成...