A catalog of wealth-creation mechanisms (2009)

And the reason for linking the east coast of the United States with China was that a ship full of goods from China (including, for example, high quality china with a lower-case ‘c’, which at the time was produced nowhere else) could be sold in the east-coast cities of the U.S. at about a 300% profit. Money and wealth often go together, but they are completely different things. There is one sub-category of 9c where it is possible to make money, and that is providing information that is difficult to obtain and useful to a narrow vertical market segment.

Source: blog.rongarret.info