在殖民地时期,美国没有证券交易所,只有极少数热衷于证券买卖的人,在咖啡馆里,在拍卖室里,或在大街的某个角落,进行交易。那种交易基本上是无组织的。人们之所以不愿买股票投资,是因为他们对在需要钱时能否卖掉股票没有把握。1792年5月17日,由24名商人和拍卖商组成的团体签订了“梧桐树协议”(因协议在梧桐树下签订)。他们决定每天在规定的时间里就政府债券及银行和保险 In the colonial era, the United States had no stock exchanges, and only a handful of people keen on trading in securities traded in cafes, in auction rooms, or in some corner of the street. The kind of transaction is basically unorganized. People do not want to buy stocks because they are not sure whether they can sell their stocks when they need them. On May 17, 1792, a group of 24 merchants and auctioneers signed the “Indus tree agreement” (because the agreement was signed under the plane trees). They decided to spend every day on government bonds, banks and insurance