Chapter 893

Although it was true that when Lu Zhou was in Princeton, he occasionally talked with some economists, but he was not so familiar with everyone.

I can't talk to him. He has to remember his name, right?

What's more, Princeton is so big. He only stayed for a few years, and he may not have met this man.

Carefully searching the names in his memory, Lu Zhou didn't find one that could match him. He didn't find out who the man was until he logged on to the academic inquiry website and typed in the name.

It turns out that if we don't search, we don't know. It's not too small.

Krugman!

2008 Nobel Prize winner in economics!

Expert in international trade, exchange rate and macroeconomics!

The most brilliant academic record is that he successfully predicted the 1997 Asian financial crisis in 1994, which made his position in the field of economics soar after the outbreak of the Asian financial crisis, and directly led to his winning the Nobel Prize in 2008.

But what surprised Lu Zhou was why he contacted himself.

The main idea of the email is to ask him when he has time and want to talk about academic matters face to face with his video.

Although not very interested in economics, after thinking for a while, Lu Zhou edited a reply letter and sent it to him.

[it's 8:00 p.m. Beijing time today. If you are free, we can talk. ]

after all, scholars who have won the Nobel Prize should be given a little face.

Anyway, he's also on vacation. He's also idle

……

Eight p.m.

At the appointed time, Krugman appeared in the video call.

The professor, who met for the first time, even omitted the greetings of self introduction, said in an impatient tone almost as soon as he got through the video phone.

"You don't know how important your research is!"

Being confused by the sudden speech, Lu Zhou was slightly stunned and said: "I'm sorry I really don't know. I don't even know what research results you mean Can you tell me something? "

Take a deep breath, Krugman explained.

"Bewley model has always been the frontier of macroeconomics, your improved model I will call it Lu Bewley model for the time being. It not only solves the problem of huge calculation and complicated steps of Bewley model, but also reduces the random error of the model! "

The Bewley model?

It turned out to be Xiaotong's paper

After listening to Professor Krugman's description, there was a sudden expression on Lu Zhou's face.

However, it was only a flash, and there was no expression of interest expected by Professor Krugman.

Seeing that Lu Zhou didn't speak, Professor Krugman thought he didn't understand what he said, so he cleared his throat and went on.

"So to speak, the ultimate goal of economics is only two, one is to optimize the efficiency of resource allocation, the other is to coordinate the interests of society! If we can get an accurate model, or even as accurate as possible, standing at the height of civilization, we can optimize the allocation of resources to the maximum! From a personal point of view, we can even predict the future through economic activities! "

In response to the word predicting the future, the boat leaned back in its chair.

"It sounds incredible."

With a smile and a look at Professor Krugman at the end of the video phone, Lu Zhou continued, "I don't understand the principles of economics very well, but for the chaotic system It seems that no mathematical model has ever been able to achieve 100% prediction. How can you predict the birth of controllable fusion technology, even if I give you a random example? How to predict its impact on the global economy before its birth? "

"I can't answer this question, but this is not the point," Krugman continued, shaking his head. "I can tell you that technological progress in theory can be summarized in the model with R & D investment, GDP ratio and other parameters, even if you can't understand it, it doesn't matter. I can definitely tell you that this is a Nobel prize level discovery! As long as you continue to study the mathematical improvement of the Bewley model, I'm sure the Nobel Prize in economics belongs to you! "

"But I've already won the fields prize, "continued Lu, shrugging his shoulders." I've won one Nobel Prize, too. "

The atmosphere in the video was embarrassed for a while.

Professor Krugman gave a light cough and persuaded.

"Don't you want to take another one? This is the Nobel Prize... "

"For me, the appeal of Nobel Prize is not as great as before," Lu said with a sigh. "Do you know? Can you understand that I'm still interested in problems that are fascinating enough to win? Dear Professor Krugman. "“……”

Krugman didn't want to answer.

He even wanted to throw his pen on the screen.

A young man in his twenties told him that there was no pursuit of honor.

Well, even if this guy really has the qualification to say that, it's really annoying!

Take a deep breath, he tried to persuade.

"Isn't the Bewley model enough to interest you? It's also a big enough problem! And hard enough! I can be very responsible to tell you that he is far more able to change the world directly than any pure mathematical research -- "

" that's not necessarily, "interrupted Professor Krugman, Lu Zhou smiled and continued," and, improve the Bewley model Or the Lu Bewley model, as you said, only took me an hour in total. No matter how it looks, it doesn't look very difficult. "

An hour

Krugman was there.

Instinct told him it was impossible, but the man opposite the video didn't look like he was joking or lying.

What's the advantage of lying to him?

In an hour, however, the Bewley model has been improved to such an excellent level

It's terrible!

"Then come here," said Professor Krugman, who could not say a word. Lu Zhou looked at his watch and yawned. "I'm sorry, but I can't help you much. Princeton has many excellent mathematics professors. Maybe you can take my model and ask them for help. "

"Then, goodbye."

The video call is over.

Looking at the black screen, Krugman remained silent for a long time, stretched out his slightly trembling fingers and took off his glasses on the bridge of his nose.

He kept watching the conversation between the old man and Professor Lu. His student, Weiser, swallowed and said.

"Professor?"

Krugman sighed and shook his head.

"There's only another way."

Princeton has many excellent mathematics professors, but not many professors are interested in economics, especially those who are engaged in theoretical research. Many people still have a prejudice on applied subjects, and think that it is a waste of time to study these things.

It's not easy for a big bull in mathematics to enter this field and make a little achievement. He can't easily let it go.

Just like the giant panda sneaking into the zoo, can you let go?

Krugman was lost in thought, and just then his heart suddenly moved.

Suddenly he remembered that there seemed to be another author in the paper.

It's not foster in one.

He didn't know the name at all. He must have been lucky.

But the name of the two works

As his eyes began to brighten, Krugman looked at his students and said at once.

"Wiesel!"

Called by a sudden name, Wiesel replied immediately.

"I am What can I do for you? "

"Write an email for me. I'll give you the email address in a moment. Just fill in Lu Xiaotong with my name and the recipient's name..." After a pause, Krugman muttered to himself, "if things go well, we should be able to catch up."

Although the voice of this sentence is not very loud, it is just heard by Wiesel, who is busy editing the email.

He was stunned for a moment and asked subconsciously.

"What can I catch up with?"

"Volunteer, or choose a mentor," continued Krugman, pausing. "Remember the paper I showed you? Although the paper is only a part of mathematical model, it is also a rare quality to be able to sort out the theoretical part completely and let a mathematician who knows nothing about economics do such an important research If I'm not wrong, she shouldn't have decided where to go for her doctorate by now! "

Wiesel hesitated and put forward a hypothesis.

"But what if she doesn't intend to continue on the academic road?"

Krugman flatly denied.

"Impossible!"

"It's absolutely impossible for her to write such an excellent paper if she doesn't intend to go down the academic road! Just to graduate, there's no need to do that! "

"Just follow my request and send the email."

"Yes..." Looking at the serious boss, wesel can only place his head, turn on the computer and start to edit the email.

The doctor, who is in his thirties, also can't help but feel the whole feeling.

Every graduation season, other people are all kinds of sets of magnetic letter of recommendation, cut their heads to get Daniel's recommendation. However, the lucky guy is good. Don't mention the recommendation letter. The Nobel Prize winner sent an email to invite her to read the blogThere is no such treatment.

He even heard for the first time that there was such a good thing.

Thinking about it, thinking about the experience of studying at the beginning, Wiesel's heart is just like a lemon, the overflowing sour taste is almost not immersed in the mail

Falk!

What a envy!