Gold is very important, because gold is very harsh even in the conditions under which it is formed in the entire universe, even if there may be a planet in the universe that is an entire planet of gold, but its quantity is definitely a rare substance relative to the total mass of the universe.

Therefore, the gold Li Ke will keep, and it will be stored secretly, and the key to adopting the silver standard lies in the goods of Datang.

When your trade with all countries is a trade surplus, everything you say counts.

This is fundamentally different from a trade surplus after more than a thousand years, and it is not good news if it is a trade surplus after more than a thousand years, because the national currency will be under huge upward pressure, and a large trade surplus means that your goods are more dependent on external market demand, which is not good news.

But the difference in this era of the Tang Dynasty is that all trade must be in kind, that is, silver or gold, or other things, such as ...... land and other resources.

Resources may not be realistic in the short term, but land is possible.

The goods sold by Datang are basically mainly porcelain, silk, tea and other luxury goods, which are consumables.

When Datang continuously exported these things, it meant that a large amount of silver would enter Datang from overseas, and if it was a wartime, some countries could only pay with gold in order to buy certain materials from Datang without a large amount of silver.

But they choose to use gold, and Datang will not collect gold according to the ratio of gold and silver in their country, but will come according to Datang.

As long as there is not enough silver in the market, the inflow of gold is inevitable sooner or later.

Li Ke wants to first loot the world's silver through the silver standard plus trade, and then say, as long as the amount of silver purchased is enough, then it is reasonable that gold will be forcibly devalued.

Don't care if you think that gold is worth more than silver, anyway, my Datang court doesn't recognize it, and as long as Datang is strong enough, then silver will become valuable.

When the vast majority of silver is monopolized and begins to collect gold at a ratio of 1:5 or even 1:3 to gold-silver, sooner or later the gold will be monopolized by Datang and flow into Datang.

For example, the Ming Dynasty, through foreign trade, almost led to the flow of most of the world's silver into the Ming Dynasty at that time, and it also became the fundamental reason for the Ming Dynasty and the Qing Dynasty to use silver as currency in later generations.

During the Ming Dynasty, Spain mined at least 80% of the world's silver in the Americas, but the Tang Dynasty did not.

Therefore, with Li Ke's current post-industrialization volume, it is estimated that the world's silver will soon flow into the territory of Datang.

At that time, Li Ke could appropriately increase the income of the people in Datang, and then gradually depreciate part of the copper coins.

The current value of copper coins is too high, and when the value of money is too high, it is not conducive to the circulation of goods, so copper coins should also be appropriately depreciated, and when the copper coins depreciate to a certain point, paper money for ordinary people can gradually circulate.

The whole plan came step by step, and now the original plan can be executed.

The most critical policy of the currency is nothing more than acceptance and credit, acceptance is fine, then credit is naturally no problem.

In fact, the exchange voucher of the mall is the biggest example in the past two years, and now the exchange voucher of the mall is not afraid of imitation, as well as Li Ke's credit, it can almost be used as a circulating currency among the nobles of Chang'an City.

"You just have to know it in your heart, but there is a problem, you still have to tell Fang Xuanling, if you don't say such a major thing, he will go crazy." Li Shimin said helplessly.

"Uh...... That's for sure. Li Ke is a little embarrassed, this is really not a pit Fang Xuanling, people are equivalent to the prime minister of a country, but if he doesn't even know that there is an extra central bank under his subordinates for some reason, then this prime minister is too bad.

And Li Ke also needs the treasury to cooperate, so not only Fang Xuanling, but also the current Ministry of Finance, Shangshu Huang Fulin, must also rule.

Not only Huangfulin, but also Dou Lukuan, who was transferred from the Ministry of Rites to the Ministry of Auditing, was also notified.

"Okay, then I'll ask Chang Lin to inform Fang Xuanling, just tell him about financial and monetary matters, see who he informs, let him bring someone over." Li Shimin thought about it, he didn't bother to think about it so much, and left it to Fang Xuanling to decide for himself.

"Okay." Li Ke nodded simply and admitted the matter.

Hurry up, it's good to deal with it.

Chang Lin went to inform him, Fang Xuanling came quickly, but when he arrived at the Liangyi Palace, Li Ke was a little speechless, and there were a lot of people calling the old house.

Fang Xuanling, Wei Zheng, and Eldest Sun Wuji are all here, are the three of you bound? Then Fang Xuanling's Shangshu Province came to Liu Zhenghui, the secretary of the Ministry of State Assets Supervision, the Shangshu Huangfulin of the Ministry of Finance, Tang Jian, the secretary of the Ministry of Commerce, the Shangshu Dou Lukuan of the Audit Department, the Shangshu Gao Jifu of the Ministry of Land and Resources, the Shangshu Duan Lun of the Ministry of Industry, and the Shangshu Qin Qiong of the Ministry of Public Security.

Good guys, almost all the Shangshu of the main department have come over.

"Your Highness, I heard that you are looking for me." Fang Xuanling came in and said directly.

"It's something." Li Ke said a little speechlessly, "That's the case, I just discussed with my father and is going to set up Datang Central Bank." ”

"Money?" Fang Xuanling and they were all stunned for a moment.

Li Ke was not polite, and directly told them the main role of the central bank.

"Banknotes? Can paper be used as money? Everyone was dumbfounded, and Wei Zheng didn't turn the corner for a while, looked at Li Ke and asked.

"Why not? In the past two years, Datang has a shopping mall's exchange vouchers, have people in Chang'an City used them less? Isn't that just paper money? As far as I know, there are a lot of people who have made direct transactions, that is, they have directly used my vouchers to buy things. Li Ke said lightly.

Everyone was shocked when they first heard that paper could be used as money, but when they heard Li Ke finish talking about the exchange coupon, everyone reacted instantly, although they didn't want to believe it, but in fact, what Li Ke said was really right.

Oh, it's understandable that Wei Zheng doesn't know, after all, Zheng Guogong is poor, and everyone understands it.

But the other ministers are not poor, although they may not have members, but they have all used exchange coupons, Li Ke said this, they think about it carefully, there are really people who have used exchange coupons to buy things, at least they have heard of it, but they didn't think much about it when they first heard this.

At that time, in their consciousness, the exchange coupon was equivalent to the money of the Arima Mall, so it was normal to use this to redeem the money.