Saturday, August 19, 2017

The Columbian exchange

"One of the big problems with both Acemoglu, Johnson, and Robinson's (AJR) work on development, and also with Spolaore and Wacziarg's QJE paper on genetic distance, is that they hadn't actually read, or properly internalized, the teachings of Crosby and Diamond. AJR argued that disease climate was a proxy for institutions and not geography, whereas clearly one might make a case that it's also a good proxy for climatic similarity. Areas of the world where European peoples died are also areas of the world where European crops and cattle also died. This was an insight that AJR missed. If Acemoglu got a John Bate's Clark for his work on institutions, then Crosby certainly deserves a Nobel. 

    Of course, there's more here. The insights of Crosby/Diamond don't end in 1500. First, history casts long shadows. But, aside from that, the world was largely agrarian even long after the Industrial Revolution in 1800. In Malthusian societies, agricultural technologies are very important. If you are a farmer in Angola, those new varieties of wheat, and farming technologies discovered in the American midwest in 1900, or even 1950, are not going to help you. If you live in Australia, the Southern Cone countries, or Europe, they will. " from 
The Wikipedia article Columbian Exchange.

No comments: