Anything you import affects your economy๐๐๐ Moja ya sababu ya TZ kutumia electric railway nikuwa hawakutaka import ya petrolium. That means you are working on the effort for other countries and creating jobs for them.(those producing petrol) ๐๐๐ That means you need more foreign currency like a dollar or pound.๐๐๐Do you know why a Dollar is called a petrol bill?? ๐๐๐When you import a car from Japan you make revenue and secure jobs for Japanese. Go back to school kid. Soma kitu inaitwa balance of trade๐๐๐What about a computer, petroleum, telephones, machinery. You also import very few compared to Kenya.