"Is the Wa Kingdom a threat to my Datang?" Li Longji was even more sure that Li Yi didn't seem to have a good impression of the Wa Kingdom.

Li Yi shook his head: "Not at the moment, they can't beat us." ”

Li Yi was sure that the Japanese State was afraid of the Tang Dynasty in the battle at the mouth of the Baijiang River.

After that, the Tang Dynasty developed rapidly, and the Wa Kingdom began to study hard.

"The Japanese people are a people who are good at learning, and they will not come to fight when they can't create a fleet that can defeat the Tang Dynasty."

Li Yi mentioned the war more than 50 years ago, the ship of the Japanese Kingdom used a mortise and tenon structure, and the Tang Dynasty's ship mortise and tenon joint with iron nails.

The Datang ships were tall, large, and sturdy.

The small boats of the Wa Kingdom were not easy to use wolf pack tactics, and the generals of the Tang Dynasty at that time were also powerful.

If it weren't for the fact that there was a strong enemy on the outside and chaos on the inside, the direction of history would certainly be different.

"In this way, Yi Di wants to profit from his trade?" Li Longji put his mind at ease.

"There is a lack of natural resources in the country, only copper and silver mines are abundant, and iron ore is also available, but I Datang is not short of iron. In addition, there are gold mines in Japan. ”

Li Yi remembered some things again, Japan's resources are scarce, and there are generally all the things that should be there.

"Is the smelting technology good?" Li Longji wanted to learn more about the affairs of the Wa Kingdom from Li Yi.

"There is no coal, there are very few coal mines in the Wa Kingdom, and they have not yet been found, and the smelting temperature is not enough, so they need to be forged."

Li Yi gave a Japanese shortcoming.

The temperature of the furnace is not enough, so you can only use the method of burning and hammering to make a good weapon.

is similar to Datang, even if there is a steel frying method for a long time, the output is still not good.

No one uses the method of frying steel to build farm tools, and frying steel has only one purpose, to make weapons.

"Can you sell them coal?" Li Longji knew that Datang had a lot of coal and sold it for money.

After asking, he himself vetoed again: "It's not good, with coal they will make better weapons." ”

"It is necessary to strengthen coastal patrols, and we can't let them take away the species of our Datang, such as new indica seeds and medicinal seeds."

Li Yi made a request from another aspect, he actually didn't care about coal exports.

As for the small boat in the Japanese country, how much can a boat hold? The point is that he did not point out the coal mines in the coastal areas of Datang.

From land to seaside, who pays for the freight? The people of Datang have a job to do.

Thinking of this, Li Yi proposed: "Third brother, you can sell coal to the Wa State, and the Wa State will pay the wages of the people of the Tang Dynasty for their work." ”

Li Longji was stunned for a moment: "Brother Wei estimates that the Wa State will not agree, and a cart of coal will be transported to the Wa Guo at a great cost." ”

He pondered and understood, pulling a cart of coal, don't talk about the Wa Kingdom, even if it is sent to Luoyang, how much money will it cost?

The Wa Kingdom was not allowed to exchange a shipload of copper for a shipload of coal, even if the coal was exchanged for coke, how much ore could be smelted?

"Alas! They can't make the money of the Wa Kingdom, they are poor. Li Longji regretted it.

Li Yi wanted to laugh, as if he was rich in the Tang Dynasty.

"Third brother, if you want to make money from the Japanese country, it is actually not difficult, the ordinary people of the Japanese country are poor, the slaves do not have any property, and the court of the Japanese country is rich."

Li Yi's eyes narrowed, thinking about how to reap the benefits from the Wa Kingdom.

Five hundred and fifty-seven envoys came, with a huge lineup, and they did not help the Japanese country develop its economy, so they were sorry for the Japanese country.

Li Longji is familiar with Li Yi's appearance at this time, and he wants to pit people before the rhythm.

"How do you earn it?" He asked.

"Sell them good farm tools and kitchen knives, buy their copper and silver ingots, and don't want ore. If it's ore, the price is lower. ”

Li Yi began to consider exchanging technology for resources, and the smelting technology of the Wa Kingdom was not good enough.

It was the Nara period, and it was only in the Asuka period that the Japanese kingdom improved its smelting technology.

It was only at that time that the Japanese sword began to be determined, and after some development of the times, it became a system.

"Is it a kitchen knife and farm tools to exchange for bad ore? Or is it copper and silver after simple smelting? ”

Li Longji believes that as long as there is enough spread, buying and selling can be done.

Li Yi shook his head: "It's not for exchange, it's for sale, they sell things to us." Sell us something, we give him money, and he can use the money to buy other Don things. ”

Li Yi emphasized that the process is not barter, but requires a currency.

Without Li Longji asking, Li Yi continued: "I originally wanted to help the Japanese state print money, if they sell things, they can also take exchange coupons to return to China to spend ......"

Li Yi popularized Li Longji's knowledge, and the exchange coupons and future Datang banknotes could become international currency.

Take Datang's banknotes to buy other people's things directly, and others want to send their own banknotes to Datang flowers, no.

Others only have one channel, sell things to Datang, get Datang's currency, and then buy Datang's products.

Either the businessman goes out and uses Datang currency to buy things, and the other party comes over to buy Datang things.

Li Longji listened, showing a look of anticipation.

The money printed by his own Datang is accepted by others everywhere.

Wouldn't it be nice to print more money yourself......

"Brother Yi, is it possible to print more money?" Li Longji consulted Li Yi on financial issues.

"Okay, take it out and spend it, some places will use Datang's currency as their own currency, and those money don't actually need Datang to pay for the same amount of goods."

"Yes, they took the internal circulation, fell into the water, and accidentally burned it, which has nothing to do with my Datang."

Li Longji thought that others had damaged the money, and it had been in circulation for a long time.

Li Yi nodded: "In addition, they will also collect their customs duties and taxes at the coastal gates, and use this method to stabilize the value of the excess money." ”

Li Yi was proficient and copied it, and the countries on the other side of the earth did it at that time.

His own country is simply selling blood in order to get the other party's money.

A pair of good cowhide shoes were produced, which were sold for hundreds of yuan in China.

Change to the outside, a few points, and give the leather shoes to others, so that you can get foreign exchange.

The lost money is subsidized by the state.

Now that Datang is the strongest in the world, Datang's currency must become an international currency, allowing others to sell things cheaply and paying taxes.

After that, they can also conduct anti-subsidy and anti-dumping investigations on the products of other countries and make a lot of money.

Li Longji didn't know the follow-up methods, and he felt that what he had heard now was enough.

"Starting with the Wa Kingdom?" He rubbed his hands together and looked very excited.

"Bohai, Khitan, Xi." Li Yi pointed in the direction of the northeast.

"It's done over there." Li Longji pointed to the southwest.

After getting useful information, Li Longji happily ate a meal, packed two servings, and left happily.

He wants to implement it and let the Tang courtiers make a layout according to this good method.

Li Yi went to the workshop to see the production of litmus test paper, and then sold it to Bi Gou, who distributed it to various state capitals and implemented it all the way to the county.

"Be sure to pay attention to safety, operate steadily at every step, and take the initiative to retreat when you find that your attention is difficult to concentrate."

Li Yixian stopped everyone's work and held a small meeting, emphasizing safety.

There are sulfuric acid and caustic soda here, which are relatively pure.

"Proprietor, sulfuric acid is also easy to use for war, right?" A craftsman asked, pointing to a beaker containing sulfuric acid.