Making rich people richer doesn't make the rest of us richer. - Ha-Joon Chang

Ricardo's theory is absolutely right—within its narrow confines. His theory correctly says that, accepting their current levels of technology as given, it is better for countries to specialize in things that they are relatively better at. One cannot argue with that. His theory fails when a country wants to acquire more advanced technologies—that is, when it wants to develop its economy. It takes time and experience to absorb new technologies, so technologically backward producers need a period of protection from international competition during this period of learning. Such protection is costly, because the country is giving up the chance to import better and cheaper products. However, it is a price that has to be paid if it wants to develop advanced industries. Ricardo's theory is, thus seen, for those who accept the status quo but not for those who want to change it.

[W]e have to work to make it what we want. It's not going to automatically happen, but... in an ideal world we want greater social protection, greater recognition of the importance of the care economy... restructuring of our production and supply networks into something more dispersed, resilient and robust, but... whether these things are necessarily going to happen. ...[T]his is my wish list but it's up to all of us, everyone to demand another world and fight for it.

Finally we have to rethink the production system, the global supply chain, partly because of this pandemic but... no one thinks that this will be the only disease that is going to hit human society. A lot of us agree that increasing acceleration of will create many other crises... extreme weather events and so on... but who knows what other crises are in store, so we need to rebuild the system to have more... resilience and robustness... Just think about airplanes, oil tankers... they can produce disastrous outcomes if something doesn't work. All these systems, including... electricity... have ways to absorb, isolate shocks and quickly bring backups [etc.]... and the economy will also have to be redesigned in that kind of way.