Though the principles of the banking trade may appear somewhat abstruse, the practice is capable of being reduced to strict rules. To depart upon any occasion from those rules, in consequence of some flattering speculation of extraordinary gain, is almost always extremely dangerous and frequently fatal to the banking company which attempts it. But the constitution of joint-stock companies renders them in general, more tenacious of established rules than any private copartnery. Such companies, therefore, seem extremely well fitted for this trade. The principal banking companies in Europe, accordingly, are joint-stock companies, many of which manage their trade very successfully without any exclusive privilege. The bank of England has no other exclusive privilege, except that no other banking company in England shall consist of more than six persons. The two banks of Edinburgh are joint-stock companies, without any exclusive privilege.
The value of the risk, either from fire, or from loss by sea, or by capture, though it cannot, perhaps, be calculated very exactly, admits, however, of such a gross estimation, as renders it, in some degree, reducible to strict rule and method. The trade of insurance, therefore, may be carried on successfully by a joint-stock company, without any exclusive privilege. Neither the London Assurance, nor the Royal Exchange Assurance companies have any such privilege.
When a navigable cut or canal has been once made, the management of it becomes quite simple and easy, and it is reducible to strict rule and method. Even the making of it is so, as it may be contracted for with undertakers, at so much a mile, and so much a lock. The same thing may be said of a canal, an aqueduct, or a great pipe for bringing water to supply a great city. Such under-takings, therefore, may be, and accordingly frequently are, very successfully managed by joint-stock companies, without any exclusive privilege.