Social economics is a systematic discipline, and human society is characterized by a complex and delicate division of labor. Under the division of labour, each person is engaged in only one or a small part of the work, and unconsciously works together with others to produce the final consumer goods. Through the division of labor, people have greatly increased the productivity of the final consumer goods.

These complex theories are too complicated for Dong Yu, but at this time, it is barely reasonable to include Qingtang in the social division of labor in the entire Great Song Dynasty, in Yun Zheng's description, the herdsmen who roll felts in Qingtang and the silkworm breeders in Shu are the same, they are all contributing to the world, and no one can do without whom, which is a kind of relationship between lips and teeth.

The silkworm farmers in Shu have no money, so they can't afford to use Qingtang's beautiful carved silverware, nor can they afford Qingtang's warm blankets, which is also a blow to Qingtang.

Although the people of Shuzhong don't sleep in tents at all, Yun Zheng must also say that for Dong Yu, knowing a certain truth is more important than making money.

"Your Qingtang Department, now need to open the door to welcome merchants from all over the world, this Yun Zheng empathizes, this road is endless, and the bandits almost collapse Yun Zheng, but since stepping into the land of Qingtang, this place has become a paradise-like world, which is determined by your father's far-sighted strategic vision.

The so-called merchant is a process of communication, why did your father welcome merchants from all over the world? One is to collect commercial taxes, because only commercial taxes will not increase the burden on herdsmen, and if you want to receive a lot of commercial taxes, you need enough businessmen to come to Qingtang, which is obvious, Qingtang has done it.

The good horses, skins, wool, felt, blankets, tents, wine, ironware, carved silverware, bows and swords, all have a very strong demand in the Great Song Dynasty.

But here's the problem, there's no such thing as a business, if you produce a lot of goods, and then exchange them all for copper coins and silver. This is very inappropriate, because in this world, the most useful thing is money, and the most useless thing is money. ”

Yun Zheng said as he took out five copper coins from his arms and put them on the table one by one. Pointing to the earliest copper coin, he said to Dong Yu, who looked puzzled: "This is the Taizu money of the Great Song Dynasty, this is the money issued during the Qingli period, can you see that there is anything wrong?" ”

Dong Yu took the five copper coins in his hand, looked at them carefully, and then handed them to Yun Zheng suspiciously, saying, "There is almost nothing wrong!" ”

Yun Zheng smiled and asked the monkey to cut the five copper coins one by one with a knife, and then showed the money cut in half to Dong Yu and said with a smile: "You are looking at the difference!" ”

Dong Yu took a pile of broken coins and carefully identified them, but still found nothing, he had already felt that there was a lot of knowledge in these five copper coins, but he didn't know where the knowledge was, and in the cold weather, sweat was flowing down.

Qingyi knotted the ghost chapter and said: "If you have any secrets, just say it, if what you say makes sense." You can go deep into the Qingtang Grassland to do your business, and the Qingyi Ghost Chapter can be regarded as owing you a favor. ”

Yun Zheng raised his thumb and praised: "Good man! ”

Then he took the money from Dong Yu's hand, and arranged them neatly one by one before he said to Dong Yu: "The secret is not in the appearance, but in the fineness of the copper coin, Taizu money copper six lead four." Some copper accounts for seven points, lead accounts for three points, the Great Song Dynasty called this kind of money Taizu money, and always Taizu money can be exchanged for one or two coins of silver! ”

When he said this, he took out the Qingli money again, pointed at him and said: "The copper content of the Qingli money is only three points, and the lead accounts for seventy percent." The merchants of the Great Song Dynasty called this kind of money lead money, and the lead money could only be exchanged for eight dollars of silver. ”

After explaining the secret of the copper coin, Yun Zheng asked Dong Yu with a smile: "How many goods do you have here, and the profit can be fifty percent?" ”

Dong Yu's eyes are about to appear mosquito coils, he doesn't know what Bai Yunzheng is talking about?

Of course, he didn't understand that all of Asia now uses the money of the Great Song Dynasty, so it is inevitable that some courtiers will do tricks on copper coins, such as the New Year's coins given to the Liao State. And the money given to the Western Xia is the most inferior money, that money has depreciated by half since it left the territory of the Great Song Dynasty, and the Great Song Dynasty has a headache every year how to get more copper, because as long as it is minted into copper coins. You can go all over the world to buy the goods you need.

For this point, whether it is the Liao State, or the Western Xia, or the Jiaoguo Luo, everyone is clear, but there is no way, the copper coins of the Great Song Dynasty have established their unshakable position in the transaction. Even if Yun Zheng made this matter clear, they didn't have any way, it was not something that could be reversed by manpower.

Once you want to resist, you can only return to the most primitive way of trading, which is barter.

Yun Zheng likes the way of bartering business the most, when he started his home from Doushaguan, he relied on bartering to start his home, this kind of business method that can eat profits at both ends Yun Zheng is very respectful, and he is determined to exchange all his goods in the rich Qingtang for the sought-after Qingtang goods.

Yun Zheng didn't explain much, knocked on the table and said to Dong Yu: "These things are only businessmen who need to know how to learn, you are the heir of Qingtang, there is no need to understand these little tricks, Yun Zheng said these words to tell you, it is very disadvantageous to exchange the goods of your subordinates for copper coins, you just need to tell your father about this problem, and his old man will definitely understand."

Now that we have met, if you don't dislike it, Yun Zheng has the courage to become friends with you, as a friend, I won't do those things that make my friends suffer.

To be honest, I very much want to exchange some Qingtang horses, but this matter is still asked Ling Zun and then said, this thing is related to the country, you should not make a decision now, I just want to change the skin, wool, felt, blanket, tent, I don't know what Brother Dong Yu wants? ”

"I didn't understand what you said, but I think there's something to learn about it, although it's the first time we've met, I like your outspokenness, you can tell people that you're my friend, I need to ask my father and the elders before I can decide if I really want to treat you as a friend, my wisdom is not enough to judge the truth of what you say, since you know that you can't exchange horses lightly, I agree that you can start your business on the steppe without buying armor and weapons.

But there is one point, when paying commercial taxes, you can only use copper coins or silver, regardless of whether these copper coins have any bad effects, Qingtang has been used for many years. ”

Yun Zheng's pupils shrank, Dong Yu really lived up to his reputation, sixteen years old was the time when his personality was flying, he actually thought that he couldn't understand his own words, and he needed to ask his elders for advice, in the case of not being sure of the authenticity, this approach is undoubtedly the safest.

After Yun Zheng made a promise, Dong Yu stood up, looked at Yun Zheng and said, "I am a person who can't stand being deceived, and my trust will only be paid once." After saying that, he and Qingyi made a ghost and left, not even interested in taking a second look at the gorgeous gifts held by the monkey, stepped on the war horse and whistled, and led his subordinates to run to the depths of the grassland, and his father's tent stood on the bank of the Xiangshui River.

The transaction in Yun Zheng's camp began, it was very peculiar, no official people from Qingtang came, but Yun Zheng demanded that every transaction must be recorded, now is not the time to deceive the herdsmen, even if they want to deceive, it is also the time when everyone is familiar enough to sell the goods for money.

The herdsmen's favorite is the oil cake! Fritters, if a little honey is sprinkled on the oil cake, the way they eat the oil cake will make people feel sad, and they do not hesitate to exchange their war horses for a bite of sweet oil cake.

Yun Zheng had a black line on his face, he came to the grassland to sell silk, not to sell oil cakes, although he did change a lot of flour in Yanguan Town, but if it goes on like this, it is still not enough for the herdsmen to eat.

"Brother, the oil cake is not worth a horse, nor a cowhide, it is not even worth a sheepskin, well, this big piece of wool can be exchanged for one, but we can't roll felt......"

Ge Qiuyan's waist couldn't straighten up, although she stayed in the tent and didn't dare to come out, but the two servants told her everything that happened outside, so she felt very happy when she saw Yun Zheng frowning and standing on the edge of the oil pot worried.

The herdsmen are all bold people, and some of them don't have long brains and have to replace all the things they bring into oil cakes, the muscles on Yun Zheng's face twitched so badly, he knew that he would open a restaurant on the grassland.

Fortunately, Dong Yu's subordinates came down and gave Yun Zheng a rotten wood brand, which was a token to allow trade, Yun Zheng grabbed this rather knowledgeable official, and asked him to tell the herdsmen to change more materials for the winter, more silk, and less oil cakes, and that thing would grow hair if it was put for two more days.

The Qingtang officials' methods of managing the people were simple and neat, and after a whip, those herdsmen obediently peeked at the oil cakes that had just come out of the pot and drooled, honestly exchanged some salt, exchanged for some small tools, exchanged for some white rice, exchanged for some peppercorns, porcelain, and by the way, pulled a few feet of silk and planned to sacrifice them to the gods in the temple.

In this way, it was very harmonious, there were fewer people eating oil cakes, Yun Zheng finally breathed a sigh of relief, and saw that there were still some oil cakes on the mat, so he generously stuffed them into the hands of the children brought by the herdsmen, and did not want money.

As long as you are willing to pay, you can make friends anywhere, sit in the middle of a group of shepherds, endure the sheep's anger, listen to the singing of "Baozhong", if there is no unpleasant smell, Yun Zheng likes these simple songs very much.

Beautiful girl in Lingguo,

One step forward is worth a hundred horses,

She took a step back and was worth a hundred fat sheep;

In winter she is warmer than the sun,

In summer she is cooler than the moon;

Fragrant race flowers all over the place.

Swarms of bees surround you;

Although there are countless beauties in the world,

Only she is worthy of the king;

King Gesar went to the north,

Now she's in the empty room.

ps：

Chapter 1,