You are my proper foothold

The time after the year is very short, less than fifteen years, G University will start school.

On the third day when Hui Xiaoyou officially went to work, a director of the center brought two students over to him, and introduced him, "Xiaoyou, these two students are graduate students of our center, who just entered school last semester. , I originally followed Mr. Liang to do research reports on the macro market, but because the old man was old and in poor health, he applied for retirement with the school just after the New Year, so no one took the two of them. You Look, can I give them to you?"

Hui Xiaoyou looked at the two students, and found that they seemed a little nervous, so he said to the director: "It's okay to just let me lead them, but are they sure they want to follow me? I mainly do modeling and large-scale Data analysis is more focused on the micro, which will be quite different from the macro analysis they did before."

The director nodded, "I know that. I also asked their opinions. Both of them seem to be very interested in quantitative finance, so I came to you."

"You can't do research with interest alone." Hui Xiaoyou smiled, "Why don't you leave the two of them here first, I need to ask them how much they know about quantitative finance. If so If I have this foundation, I will continue to guide them. If the foundation is relatively weak, I will think about whether there are other directions for them to do, and then I can ask other teachers to help, what do you think?"

"No problem, you should find out first." The director smiled and patted the shoulder of the student next to him, and said: "Since you said you are interested, you should behave well and try to let Professor Yan accept you. Don't be nervous."

Hui Xiaoyou couldn't help laughing when he heard the director's words. This is not a way of talking that would make people nervous. Both children's heads were buried lower than before, and they didn't lift up until the director left.

When there were only three of them left in the office, Hui Xiaoyou pointed them to the chair next to them and said, "Stop standing, sit down and talk."

The two boys looked at each other, then sat down obediently.

"Let me introduce myself first. My name is Hui Xiaoyou. The specific words are written on the sign outside the door. If you are interested, you can look back." Hui Xiaoyou said in a joking tone in order not to make them too nervous. , "What are your two names?"

"Hello, Teacher Yan, my name is Pei Ran." The taller of the two students said first.He seems to have a sunny personality, and he is also handsome. At this time, when he gradually relaxes, his eyes reveal a confident look, and he looks very energetic.

The other boy with a handsome face was more shy. After Pei Ran finished speaking, it took a few seconds before he said in a soft voice: "My name is Xiao He."

"Xiao He? The 'Xiao He' from 'Success is Xiao He, and Failure is Xiao He'?" Hui Xiaoyou asked curiously.

Xiao He shook his head in embarrassment, "No, it's He Miao's 'He'."

"So that's how it is." Hui Xiaoyou nodded suddenly, and seeing Pei Ran staring at him thoughtfully, he asked him, "What's wrong?"

"It's okay." Pei Ran looked away when she answered.

Today's kids really can't see through.

Hui Xiaoyou thought silently, and remembered that he had a business to keep them, so he took out two blank papers from the table and handed them to the two of them respectively, and gave each of them a pen, saying: Write down the quantitative finance-related formulas and models that you are relatively proficient in. It doesn’t have to be too detailed, as long as it can let me see your understanding of them. And those commonly used programming languages ​​​​are also written down.”

"Okay." Pei Ran and Xiao He responded at the same time. After the answer, they looked at each other again, and then bowed their heads and wrote.

Yan Xiaoyou actually learned this way of examining students' knowledge from his tutor when he was a PhD student.

That gray-haired old gentleman, as a former Nobel Prize winner in economics, when meeting Hui Xiao for the first time, sometimes he kindly took out a blank sheet of paper and handed it to him, asking him to write what he thought would be the most useful in the related field. The research methods and models are all written out, and the time is controlled within four to ten minutes.Hui Yue watched the old man while writing, and when he wrote for 10 minutes, the old man stopped and told him that it was all right.

That time was the interview Hui Xiaoyou applied to become the old gentleman's doctoral student.

At that time, he didn't really know what kind of professionalism his mentor could see from that half-sized piece of paper, but for him now, he was able to understand the intention of his mentor.

When your research on a field is deep enough, the relevant content is clear at a glance.

When a student writes down what he knows, his logic, his way of thinking, his grasp of the key points and his understanding of the content are all clearly displayed on that piece of paper.

Like when Hui Xiaoyou looked at Pei Ran and Xiao He now, it was as if he saw himself back then.

Sentimental and nervous, but focused and confident.

Hui Xiaoyou began to have a good impression of these two students, and felt that even if their basic knowledge was not as satisfactory, he could still consider taking them.

Half an hour later, Hui Xiaoyou glanced at the paper in front of the two of them, tapped the table lightly and said, "It's ok, stop."

Pei Ran and Xiao He stopped writing at the same time, and looked up at him.

Hui Xiaoyou saw that the two of them seemed to have a tacit understanding, and their actions were also very consistent. It felt like they had known each other for a long time, so he couldn't help but gossip: "How long have you known each other?"

"Huh?" Both Pei Ran and Xiao He were stunned for a moment, not knowing why he asked this, and then Pei Ran replied: "We are classmates in high school."

"High school." Hui Xiaoyou somehow developed a mentality of comparison, thinking: I have known Jiang Xin longer.

"Teacher, do you have any questions?" Pei Ran asked again.

Hui Yue came back to his senses, "No problem, you seem to be familiar with each other, just ask casually."

Pei Ran glanced at him thoughtfully again, Hui Xiaoyou thought that this kid is really amazing.

He stopped looking at these two people, and lowered his head to quickly browse through what they wrote. He felt that there was indeed a lack of foundation, but it was not a big problem.

Hui Xiaoyou thought for a moment, looked up at them and said, "I probably have some understanding of the quantitative and financial backgrounds of the two of you, but in my opinion, this background is far from enough."

Pei Ran sat without moving, Xiao He glanced at him nervously first, then turned his gaze back when he found that he was still calm, and looked at Hui Xiaoyou seriously.

Hui Xiaoyou felt that he had a bit of a bad taste, so he couldn't help but smiled and said: "Let me introduce it briefly to you first. I said here that I am doing quantitative finance, but in fact it should be financial mathematics. Finance is a tool, and mathematics is the essence. So if you follow me to do research, the research methods and content may be different from the economics or finance research you have been exposed to before. What we have to do is to analyze the current situation through quantitative analysis such as statistical analysis and mathematical modeling. Analyze the current financial market situation and use it as a basis to help make corresponding market decisions. The requirements for mathematics are very high, and computer programming will even be involved in the follow-up.”

Pei Ran nodded, "Teacher, we probably know all about this, and we are both very interested in this field."

"I know you are interested, but at the same time, you also need to know that this field does not mean that after you are interested, you can basically get started by reading a few more books and papers."

After Hui Xiaoyou finished speaking, he felt as if he had accidentally hacked other subjects in the same industry. While thanking that there were no other teachers in the office, he continued: "If you want to really master financial mathematics, you have to spend time and work hard. All The models you have come into contact with must be deduced, calculated, and fitted with realistic data. Programming also needs to be written and practiced repeatedly, and you must find a way to write programs to solve the problems you want to solve. Simply put , Financial mathematics is a relatively new subject, especially in China, there is not yet a sufficiently mature system, and it will definitely not work if we want to apply foreign methods mechanically, so the key lies in innovation.”

Hui Xiaoyou glanced back and forth between the faces of Pei Ran and Xiao He, "I am very demanding on academic things. If you want to follow me, you will definitely have to endure hardships. I will give you some time to think about it. Whether you want to stay or not, think carefully, and after you make a decision, you cannot easily go back on your word."

"Ten minutes." Hui Xiaoyou stood up and walked to the door, "I'll be back in ten minutes."

He closed the door behind him, leaving the two students inside to think slowly, while he went downstairs to stretch in the courtyard of the center, breathing the fresh air not far from the lake, very comfortable.

Just when he was "in close contact" with nature, Chen Jiashu called.

"Brother, are you busy this afternoon? Come here if you're not busy. I want to discuss with you about the last time." There was another phone ringing from Chen Jiashu's side, and Hui Xiaoyou heard him say to the secretary: "Ask them to call back in five minutes."

Hui Xiaoyou knew that the "what happened last time" he said meant asking him to go to his place to help him as a research consultant, and remembering that he hadn't given an answer, he came down and said, "Okay, I'll see you in the afternoon, probably Is it convenient after four o'clock?"

"Convenience, convenience! Just tell them you're here to see me. It's done. See you this afternoon!"

"En." After Hui Xiaoyou agreed, Chen Jiashu hung up the phone in a hurry, sounding very busy.

"Do you want to tell Jiang Xin?" Hui Xiaoyou murmured silently, thinking that he was going to his company, so he should say hello in advance.

But he changed his mind and decided not to fight, so that he could give him a "shock" when he saw Jiang Xin again.

When Hui Xiaoyou had this thought, he couldn't help but smirk a few times, wandered upstairs and returned to the office, and it took exactly 10 minutes to look at him.

He knocked on the door and walked in, Pei Ran and Xiao He turned to look at him at the same time, Hui Xiaoyou asked them: "Have you considered it?"

"Think it over." Pei Ran should be the representative of the two, and said to Hui Xiaoyou solemnly: "Teacher, we want to do research with you."

The expected answer.

Hui Xiaoyou smiled silently, went to the table and pulled a piece of post-it note, picked up a pen and wrote a list of book titles on it, and made a list of the year and author of the relevant paper, handed it to Xiao He and said: "One month, read it with focus, and then we will talk about what to do next."

"Are these the original English versions?" Xiao He asked in a low voice.

"Otherwise?" Hui Xiaoyou was about to tease a few words, but seeing the expression on Xiao He's face, he felt that he couldn't make fun of such an introverted child, he had to teach according to his aptitude, so he changed his tone to be gentle and amiable Said: "There are several books here that have photocopied versions in the library, and there are genuine free e-books that can be downloaded online. For paper, you can enter it from the library database. If you encounter other problems, you can always contact us. I said."

"But do you want to read all of these in a month?" Xiao He's voice became even softer.

Hui Xiaoyou smiled kindly at him and nodded: "That's right. Isn't it hard to say, and you wanted to retreat from the beginning?"

"We can finish watching." Pei Ran suddenly said from the side.

He took the two sticky notes from Xiao He's hands, then pulled him to stand up together, and bowed slightly to Hui Xiaoyou: "Thank you, teacher."

"You're welcome, just work hard." Hui Xiaoyou sat on his chair and told them that they had nothing else to do and they could go back first.

Pei Ran nodded, and walked out with Xiao He.

Hui Xiaoyou watched their backs disappear into the doorway, and couldn't help leaning his head on the back of the chair and sighing, "It's good to be young."

He has actually reached the age where he can take care of his graduate students, and suddenly he feels that the whole person has changed.