我瞄了一下wiki, 我理解是之前的经济发展太慢了，所以近代金本位/银本位/双本位几十年都不会出问题。

“According to a survey of 39 economists, the majority (93 percent) agreed that a return to the gold standard would not improve price-stability and employment outcomes,[11] and two-thirds of economic historians reject the idea that the gold standard "was effective in stabilizing prices and moderating business-cycle fluctuations during the nineteenth century."[12] Nonetheless, according to economist Michael D. Bordo, the gold standard has three benefits: "its record as a stable nominal anchor; its automaticity; and its role as a credible commitment mechanism.”

再之前的贵金属 我没考究，不过估计一个王朝的跌更更快。