"Yiyi, what are you doing?" asked strangely when Zhao Shubei came back and saw the new computer and Liu Ruoyi who was fighting in front of the computer.

"Do coursework, study, reading, notes and experiences. Liu Ruoyi said without looking back, today in one day, the first eight chapters of "Investment" were integrated into a reading note of more than 8,000 words, fortunately, these knowledge were learned well in the previous life, and the memory was relatively solid, Liu Ruoyi got a high-quality reading note in one go.

Perhaps, with this "gift" to the door, the teacher will be extra gracious and open up the net, right?

Zhao Shubei saw Liu Ruoyi working so hard, thinking that she was familiar with the course in advance, and after thinking about it, she really admired Liu Ruoyi, they are all stars with an annual income of hundreds of thousands, and they are still studying so hard, although they are really tired when they come back from a few jobs, but seeing Liu Ruoyi working so hard, Zhao Shubei is also like a chicken blood, and accompanies Liu Ruoyi to pick up a book and start studying.

Liu Ruoyi saw Zhao Shubei studying hard, smiled, and didn't speak again, like Zhao Shubei, who has no appearance, no money, no background, in addition to working hard to learn and improve herself, where is there any other way to change her fate, God helps herself, her best friend, if she has been so willing to fight, maybe she will also do a career in the future.

After a busy week, the office of the Department of Economics of Gimhae University began to welcome the return of teachers.

Professor Xu Shenglai, who teaches investment, is no exception, he came to the office early in the morning to clean up the desktop, turned on the computer to prepare the lesson plan, although he has been teaching this course for more than ten years, but he often talks about it and is always new, and he will make some updates before each class, either to add and modify cases, or to adjust the main points of the content according to the changes in the textbook.

Therefore, Professor Xu is also one of the most feared killers among the students of the Department of Economics.

The usual score of 20 points for class attendance and exercises is a life-saving score that everyone must strive for, otherwise they all look at the final test results, and more than 3 percent of students may fall on it.

Therefore, Professor Xu basically did not care about the attendance of students, every time he put the sign-in sheet on the podium 5 minutes in advance, and put it away at the beginning of the class, and the students who signed on behalf of him could try Professor Xu's memory, and each time he would check the difference between the handwriting of the exercise and the handwriting of the signature, and the recognition rate of the signature was almost 100%!

Of course, Liu Ruoyi is also very aware of this, so she never considered the option of letting Zhao Shubei and Liu Yanan help her get through the trick, but used another means.

With a large stack of printed manuscript paper, Liu Ruoyi also came to the office of the Department of Economics early in the morning, because the time was too early, Liu Ruoyi only saw Professor Xu who was busy, took out his reading notes on investment, and walked over with apprehension.

"Teacher Xu, morning!" Liu Ruoyi greeted crisply a few meters away.

Professor Xu raised his head, saw that it was Liu Ruoyi, and said with a smile, "It's our campus diva, why did you think of coming to the office today?" Although Professor Xu didn't go to see the midsummer night, Liu Ruoyi was originally a topic of conversation in the Department of Economics, and she was beautiful, which teacher didn't know her?

"Teacher Xu, I came here today because I have something to trouble the teachers. Liu Ruoyi has a very good attitude, and there is probably no precedent for what she is thinking, and as soon as she comes, she meets the strictest teacher Xu, and Liu Ruoyi can only bite the bullet.

"Oh, what's going on?" Professor Xu said a little strangely, when this girl was in trouble before, the most she could do was to find the tutor to react to the situation, and she hadn't heard that she had found a subject teacher, what was going on today, Professor Xu was really a little curious.

"Mr. Xu, could you please take a look at how my reading notes are written?" Liu Ruoyi handed over the manuscript of the reading notes in his hand, Professor Xu took it curiously, glanced at it, and it was the content of "Investment" that he was going to talk about, "You taught yourself "Investment"?" Professor Xu asked while reading.

"Yes, I studied the first eight chapters by myself during the holidays, and then made reading notes, Mr. Xu, you can see if my understanding is correct. Liu Ruoyi replied respectfully, secretly praying in her heart that she would see if this trick would be successful.

"Well, yes, it seems that you have mastered the key content," Professor Xu said as he flipped through it, the more he looked at it, the more surprised he became, where is this simple reading note, it can be said to be a small lesson plan, from the description of the content and examples, Professor Xu feels like a graduate student doing research projects.

This is not like the level that a beginner undergraduate can achieve, "Liu Ruoyi, did you write these yourself?"

Professor Xu stared at Liu Ruoyi with blazing eyes, if it was really Liu Ruoyi who did it herself, it was really a good seedling worth cultivating.

"Yes, Mr. Xu, I did it all independently. Liu Ruoyi replied calmly.

"What are the meanings and limitations of Markowitz's portfolio selection model?" Looking at Liu Ruoyi's expression, although Professor Xu already believed in his heart that there was a high probability that Liu Ruoyi did it himself, he still couldn't help but take a test.

"In a conventional sense, the Markowitz portfolio selection model not only reveals the determinants of the risk of the portfolio assets, but more importantly, it also reveals the important conclusion that the expected return of an asset is determined by its own risk, that is, the asset price (individual assets and portfolio assets) is priced by its risk, the price of a single asset is determined by its variance or standard deviation, and the price of a portfolio asset is determined by its covariance. Liu Ruoyi opened her mouth and replied that as an investment banking elite, investment is one of the courses she is most familiar with.

"It's just that this mathematical model integrates some contents of modern finance, investment and even financial management, and the model is more complex and not easy to apply in practice. There are some simplifications and cropping that need to be considered in the application. ”

Professor Xu woke up inexplicably, this is a genuine good seedling, this question was originally asked by him on an impromptu basis, Liu Ruoyi would never have known beforehand, but looking at her answer, she basically said the key point, obviously she really learned, and this is only the result of Liu Ruoyi's self-study during her own vacation, if you put it in your own hands to cultivate it......

I shouldn't be afraid that there will be no successor, right?

"Liu Ruoyi, I see that you have a good talent in this area, are you willing to continue your studies in investment after graduation?" Thinking that such a good seedling was by his side, Professor Xu didn't want to miss it, so he simply invited directly, "As long as the unified examination is online, I have no problem here." ”