https://katsuragicsl.github.io/tags/economics/Recent content in Economics on Script Adultshttps://katsuragicsl.github.io/images/papermod-cover.pnghttps://katsuragicsl.github.io/images/papermod-cover.pngHugo -- 0.128.2en-usSun, 07 Jun 2026 23:04:38 +0800https://katsuragicsl.github.io/blogs/thoughts/courier-and-train/Sun, 07 Jun 2026 15:06:05 +0800https://katsuragicsl.github.io/blogs/thoughts/courier-and-train/The Courier and the truck; complement and substitute Although people say “this time is different”, there is something in common. In the ancient ancient times, if you needed a parcel moved across the country, you hired a body. The good courier had good strength to carry the parcels, strong legs, deep lungs, and a tolerance for going without (too much) rest. Those were the metrics. Speed was a property of the person, so you paid for the person who had the most of it.