Colonial trade monopolies lasted only when they hurt the colony but helped the home country

New economic research explains why some colonial trade monopolies lasted for centuries while others quickly failed. It turns out these monopolies only benefited the colonizing power when the colony produced similar goods, not different ones.

This paper offers a new way to understand why some historical trade arrangements persisted for so long. It shows that the economic relationship between a colonizer and its colony directly shaped the political will to maintain exclusive trading companies. This kind of historical analysis can inform how we think about modern trade relationships and economic power dynamics, especially when one party has significant leverage.