The success of France made Britain, which is also facing the debt crisis, adopt the same method, only exchanging annuities for shares of Nanhai Company. Like France, the share price of Nanhai Company has soared. The stock price of Nanhai company rose, which led to a general bullish stock market. Stock speculation swept through European metropolises such as London and Paris, and new joint-stock companies were established one after another. Most of these companies have no century business projects and no licenses. In the absence of certain development prospects and performance support, the stock price of joint-stock companies will inevitably return to rationality. 1720, the Paris stock market crashed. In August, the British government promulgated the Regulations on Prohibiting Bubble Companies to control speculation. So the South China Sea rice run-away event happened.
The South China Sea bubble incident is the product of the imperfect financial system. This crisis almost caused the newly-built financial building to collapse, which seriously affected the development of the financial industry.