Secondly, as group A students are contributing less, they surely get less benefit. Moreover, many companies which employ people in group A have to train them from ground-up. These companies take this cost from group A’s salary to reduce the risk of their employees leaving to other companies after being trained. So, less benefits are unavoidable and certain, group B members are more loyal and effective workers. They also have useful experience and skills. Besides, their education is the same as or even higher than that of group A. As the result, group B gets more benefits absolutely.
American manufacturers produced locomotives equal in capacity to British engines, but at lower cost. Though American engines were elaborately decorated with expensive brass work and labor costs were higher than in Britain, American manufacturers reduced costs by using less expensive cast iron rather than wrought iron for many components. America's railroads began by using locomotives imported from Britain, but by the end of the 19 th century, America was a major producer of locomotives and had exported more than 2,900 engines.