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Wesw's avatar

Noah, why do economists constantly ignore Wright’s Law and learning curves?

Manufacturing scales on learning curves; services and farming don’t. That alone makes manufacturing fundamentally special. Some economists seem skeptical that these curves even exist. I own two manufacturing companies, and I’d literally bet my life they do. And if we accept that they exist, doesn't that break the standard assumptions about free trade? If one country captures all the volume, they capture the entire learning curve and inevitably dominate the global market.

Look at Ricardo’s classic comparative advantage example. If it’s wine vs. cloth, you obviously want the cloth. Textile production has a learning curve and massive technological spillovers (the Jacquard loom literally led to the first computers). Wine doesn't. If Portugal had all the looms and the Brit’s had all the wine and farming, I think we would live in a much different world today.

Comparative advantage assumes efficiency is static. If Portugal starts out better at both, but Britain gets all the cloth production, a 10% learning curve changes everything. Give it ten years, and Britain gains an absolute advantage, swamps Portugal with cheap textiles, and wipes out their manufacturing base. Meanwhile, wine just stays wine.

This isn't an argument for pure mercantilism. Free trade between peers like the US, Europe, and Japan works because we trade advanced goods back and forth. We scale in different subcomponents without anyone trying to monopolize the entire global learning curve. But the idea that we should just surrender an entire industry like autos because another country is slightly more efficient is suicidal. You lose all the technological spillovers, and once you lose the manufacturing base they’re almost impossible to restart so the company that has them can own you. You have to separate high learning curve products from low ones. If a rival country aggressively targets all the learning curves and only buys our agriculture in return, that is a terrible deal. Who cares if they buy our soybeans? Soybeans don't have learning curves. When a country tries to capture the entire market for the things that actually matter, you have to throw up protectionist walls.

I’d love to see you write an article on learning curves and how they have the potential to break the rules of comparative advantage in some situations. Seems like that’s a more straightforward explanation of why a ricardian framework is wrong here.

Lance Benson's avatar

I could agree with the analysis for many sectors, like medicines, drone parts, other military or duel-use products, and transport vehicles, but for 15-year and 30-year investments like batteries and grid electronics and solar, Europe (and the rest of the world) should buy everything China can make at the below-cost prices which China's government-driven internal competition makes available.

Heavily subsidize European production so that you build fundamental industrial capacity, but flood the grid with Chinese solar and wind and batteries to reduce dependence on Middle Eastern (and U.S.) fossil fuels. China could cut off solar panel exports, but if you've already installed much of what you need for the next 30 years, there will be time to develop replacements.

And Europe should realize that it needs Ukrainian military capacity as much as Ukraine needs Europe's financial and military support.

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