What types of technology changes affect REI? Solution technological change means change in production technology. In early stage of civilization production technology was mainly labour intensive technology that means then people use labour as the main factor of production if labour increases prodution increases if labour decreases production decreases. Now technological change means now a days production is depended more on capital rather than labour. Computer can do many peoples\' work alone. So this is called capital intemsive technology. REI is not clear here please provide the full form. Or try to explain by above theoritical explanation..