condition of complexity that the interference with any given operation affects not merely the parties directly involved, but numberless others having at first sight no connection therewith.
The vital interdependence here indicated, cutting athwart frontiers, is largely the work of the last forty years; and it has, during that time, so developed as to have set up a financial interdependence of the capitals of the world, so complex that disturbance in New York involves financial and commercial disturbance in London, and, if sufficiently grave, compels financiers of London to co-operate with those of New York to put an end to the crisis, not as a matter of altruism, but as a matter of commercial self-protection. The complexity of modern finance makes New York dependent on London, London upon Paris, Paris upon Berlin, to a greater degree than has ever yet been the case in history. This interdependence is the result of the daily use of those contrivances of civilization which date from yesterday—the rapid post, the instantaneous dissemination of financial and commercial information by means of telegraphy, and generally the incredible increase in the rapidity of communication which has put the half-dozen chief capitals of Christendom in closer contact financially, and has rendered them more dependent the one upon the other than were the chief cities of Great Britain less than a hundred years ago.