The Wealth of Nations by Part 5 Chapter 1 Page 132

are already members, as to discourage others from becoming so; which may be done, not only by a high fine, but by many other contrivances. The constant view of such companies is always to raise the rate of their own profit as high as they can; to keep the market, both for the goods which they export, and for those which they import, as much understocked as they can: which can be done only by restraining the competition, or by discouraging new adventurers from entering into the trade. A fine even of twenty pounds, besides, though it may not perhaps be sufficient to discourage any man from entering into the Turkey trade with an intention to continue in it, may be enough to discourage a speculative merchant from hazarding a single adventure in it.

In all trades, the regular established traders, even though not incorporated,