Today's Ming Dynasty is a silver-standard country, but Liu Hongjian and even the silver standard are not reliable at all, so he decided to implement a double standard system that uses gold and silver as the standard currency.

The reason is simple: the small production of gold and the high cost of production are not enough to support the demand for money generated by the rapid development of the commodity economy, but the opposite is true for silver, which has high reserves, high production and low production costs.

From the book Fundamentals of Economics, we learn that the silver standard prevailed from the 16th century to its collapse at the end of the 19th century, and lasted for 300 years, and then the gold standard rose, but the gold standard only lasted for 100 years and then collapsed.

Although the gold standard only lasted for 100 years, it was caused by the global economic boom and frequent wars after the two scientific and technological revolutions.

As for three hundred years later, let's talk about it then, anyway, his coffin board is estimated to be rotten at that time, and it's none of his business.

"The issuance of new currency must not be issued indiscriminately, it must be based on the country's gold and silver reserves, and the issuance of more will lead to inflation, simply put, an egg would have cost two cents, and too much currency issuance would have led to currency depreciation, and an egg would have to cost four cents or more.

Less will lead to deflation, and more or less will not work. Liu Hong gradually said again.

But seeing that Zhu Cihong was confused and didn't know what he was talking about, Liu Hongjian didn't bother to elaborate further, the School of Engineering has now opened a basic discipline of economics, and similar attempts will slowly become popular.

"Look, this is a sample of the currency created by our Xishan merchants." Liu Hong gradually said and took out a few banknotes and a few coins from his body.

The banknote is a dark red rectangle, with a blank space on the left and the sun and moon dragon flag of the Ming Dynasty on the right.

Zhu Cihong picked up the largest one hundred taels banknote, shook it with a sigh, and found that this banknote was completely different from the rice paper on the market in Daming, the rice paper was soft and had poor toughness, the banknote had a crisp sound and a thick feel, he pulled the banknote and it was not broken, and then looked at Liu Hongjian suspiciously.

"This is a new paper made by Xishan Shanghe with special materials, which can not help but be durable and waterproof." After speaking, Liu Hongjian poured a cup of tea on the banknote of one hundred taels.

Seeing that the banknote was slowly soaked, Liu Hong gradually picked up the banknote and gently pulled it, but the banknote was intact.

"God! Brother Liu, what kind of material is this banknote made of, and why have I never seen it? ”

The development of papermaking technology is now very mature, there are as many as seven or eight kinds of quality on the market in Daming, the material is complex, and the material is roughly divided into bark and straw and other things.

Straw is a relatively low-end paper, and the price is much cheaper, but even straw paper is not something that ordinary people can afford.

There are several kinds of bark as the material, among which the mountain poplar is the best, and the material of the rice paper used in the palace is made of the mountain poplar.

"This kind of paper is made of cotton, the cost is slightly higher, but the cotton cellulose content is much higher than the bark straw, it is made of paper with excellent toughness and will not break when exposed to water, and each banknote has seven anti-counterfeiting marks to prevent unscrupulous people from counterfeiting counterfeit money."

Saying that, Liu Hongjian explained to Zhu Cihong one by one the anti-counterfeiting marks on the banknotes, from color to texture, to security lines, complementary printing patterns, etc., the anti-counterfeiting marks are much more complicated than the previous Daming treasure banknotes.

Zhu Cihong was already amazed when he saw that the splashed paper was still so tough, and he couldn't help but be even more interested when he saw that this banknote still had so many anti-counterfeiting marks.

In fact, the biggest anti-counterfeiting mark of this banknote is the material, at this time there is no process of making paper with cotton, even if it is figured out Liu Hongjian is not worried.

The production process of this banknote is not only the material, but it also took a full year for the high-level craftsmen of Nishiyama Shanghe to produce the machine for printing banknotes.

From papermaking dyeing to various anti-counterfeiting marks and special patterns, the process is complicated, and it took Xishan Shanghe and the Ordnance Institute for half a year to manufacture a special banknote printing machine for printing banknotes and coins with stainless steel as the material.

With this thing, in order to ensure that the material, size, and pattern specifications of the banknote are uniform, unless Liu Hong gradually fully announces a complete set of process technology, otherwise with the current technical level of various countries, it is tantamount to a fool's dream to imitate.

"Brother Liu, why is the left side of this banknote blank?" Zhu Cihong pointed to the left side of the banknote.

"There, it's for memories." Liu Hong gradually said meaningfully.

He planned to find the most experienced engraver of the Ming Dynasty to engrave the pattern in reverse on the printing machine, and yes, the left side of the banknote would be printed with the emperor of the Ming Dynasty, which was the last anti-counterfeiting mark of the set of banknotes.

"The portrait of Emperor Gao of the Emperor of the Great Emperor of the Great Emperor of ......the Emperor of I'm going to print a portrait of your father, how about it? ”

The first two naturally have nothing to say, and printing the portrait of the uncle is also something that Liu Hongjian has already thought about, and the uncle has worked hard for Daming for 20 years, which is worthy of this honor to make all the people miss.

"Naturally, it's no problem, it's exactly what I want, what about these five taels and one tael?" Zhu Cihong asked.

"The last two are yours, and it's okay to print them as your own." Liu Hong said casually.

Zhu Cihong took the two smallest banknotes and looked at them over and over, as if he had already made up his mind.

"Brother Liu, can you engrave two portraits on one banknote?" Zhu Cihong pointed to the small blank road.

"It shouldn't be a big problem, but the area is too small, and the portrait will look blurry." Liu Hong gradually thought about it.

Zhu Cihong nodded when he heard this, and then picked up a tael of coins to observe.

The color of this coin is very silvery and very textured, which is slightly different from the silver coins of Europa countries that Zhu Cihong has seen, with a blank obverse and a Ming sun, moon, dragon banner and currency value on the reverse.

"You pinch the sides of the coin, blow it vigorously, and then put it next to your ear, like this......" Liu Hong gradually picked up a coin, and said as he demonstrated to Zhu Cihong.

Zhu Cihong looked puzzled, and when he saw this, he blew vigorously on the side of the coin, and then put the coinage next to his ear.

I only heard a buzzing sound like a dragon's groan in my ears, and the sound continued one after another, so startled that Zhu Cihong's mouth opened.

"Brother Liu, this coinage actually makes a dragon groan!"

"Yes, that's the highest security mark for coinage." Liu Hong gradually stroked the smooth coinage and said with relief.

……