[jjeaff]

It's not a subsidy specific to China. It's an international agreement to charge certain international rates for postage. It applies only to packages under a certain size and weight.

But it probably should go away. It creates this weird imbalance where shipping things from China to the US can be cheaper than shipping something to your next door neighbor.

NPR's planet money had an informative and fun episode on the topic. https://www.npr.org/sections/money/2018/08/01/634737852/epis...