Final answer:
Rapidly developing economies can afford new technologies through high savings, investment in education, and seeking out applicable technology.
Step-by-step explanation:
Rapidly developing economies like China, India, and South America may be able to afford new technologies through various means. Firstly, these countries have been among the highest savers in the world, allowing them to invest domestically in building physical capital. They have also implemented policies that prioritize investment in education, particularly in math and science, which is essential for engineering and business. Additionally, these countries can seek out applicable technology through initiatives like the Belt and Road Initiative, which connects China with other regions and may include a commitment to protecting the environment.