旧中国的商业中,有一种叫“行”或“行家”的居间业。它的主要业务不是从事商品的收购、贩卖、运输和销售,而是代客买卖抽取佣金,一般资金不大,从业人员不多,但在商品经济发展的过程中一度起过相当重要的作用,没有它,商品就会脱节。随着商品经济的发展,行的规模越来越大,居间作用却逐渐减弱以至在很大程度上为别的作用所代替,有些居 In old Chinese business, there is a kind of intermediary industry called “line” or “connoisseur”. Its main business is not to engage in the acquisition, sale, transportation, and sales of commodities, but to collect commissions for valet sales. The general funds are small, and there are not many employees, but it has played a very important role in the development of commodity economy. Without it, the goods will be disconnected. With the development of the commodity economy, the scale of banks has become larger and larger, and the intermediaries have been gradually weakened and replaced to a large extent by other functions.