HKB
time of war; thirdly, the trade of making and maintaining a navigable cut or canal; and, fourthly, the similar trade of bringing water for the supply of a great city.
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.
To establish a joint-stock company, however, for any undertaking, merely because such a company might be capable of managing it successfully; or, to exempt a particular set of dealers from some of the general laws which take place with regard to all their neighbours, merely because they might be capable of thriving, if they had such an exemption, would certainly not be reasonable. To render such an establishment perfectly reasonable, with the circumstance of being reducible to strict rule and method, two other circumstances ought to concur. First, it ought to appear with the clearest evidence, that the undertaking is of greater and more general utility than the greater part of common trades; and, secondly, that it requires a greater capital than can easily be collected into a private copartnery. If a moderate capital were sufficient, the great utility of the undertaking would not be a sufficient reason for establishing a joint-stock company; because, in this case, the demand for what it was to produce, would readily and easily be supplied by private adventurers. In the four trades above mentioned, both those circumstances concur.
The great and general utility of the banking trade, when prudently managed, has been fully explained in the second book of this Inquiry. But a public bank, which is to support public credit, and, upon particular emergencies, to advance to government the whole produce of a tax, to the amount, perhaps, of several millions, a year or two before it comes in, requires a greater capital than can easily be collected into any private copartnery.