The Wealth of Nations by Part 5 Chapter 1 Page 134

ministers, had never maintained any forts or garrisons in the countries to which they traded; whereas joint stock companies frequently had. And in reality the former seem to be much more unfit for this sort of service than the latter. First, the directors of a regulated company have no particular interest in the prosperity of the general trade of the company for the sake of which such forts and garrisons are maintained. The decay of that general trade may even frequently contribute to the advantage of their own private trade; as by diminishing the number of their competitors it may enable them both to buy cheaper, and to sell dearer. The directors of a joint stock company, on the contrary, having only their share in the profits which are made upon the common stock committed to their management, have no private trade of their own of which the interest can be