China is the same size as the US but has four times the population, and most of them are in the east. This means they have much higher population density. Anoth

China is the same size as the US but has four times the population, and most of them are in the east. This means they have much higher population density. Another important difference is that they can build rail for much cheaper than the US because their government doesn’t have to respect property rights or follow stringent environmental regulations.