While, under the handicraft of small-unit system of production was that typical a century ago, demand created the supply, today supply must actively seek to create its corresponding demand. A single factory, potentially capable of supplying a whole continent with its particular product, cannot afford to wait until the public asks for its product; it must maintain constant touch, through advertising and propaganda, with the vast public in order to assure itself the continuous demand which alone will make its costly plant profitable. This entails a vastly more complex system of distribution than formerly.