One hour!

Professor Joseph's pupils dilated, and a look of disbelief was written on his face.

It took him several years of painstaking research to complete the Dixit Stiglitz model with his collaborator Dixit, and it was not until 1977 that he proposed it in a paper entitled "Monopolistic Competition and the Diversity of Optimal Products", which caused a shock in the entire economic community, directly contributed to the birth of the "New Trade Theory", and even directly brought him the Nobel Prize in Economics in 01!

No one knows better than him how powerful mathematical tools are in economic theory!

No one knows better than him how difficult it is to develop a mathematical tool that can be used to analyze economic models and enable them to really work......

However, Lu Zhou now told him that it only took him an hour to complete the entire Lu-Bewley model?!

It's a dream!

Even if this model is based on the framework of the existing Bewley model, it is terrifying to improve such a complex and cumbersome economic model into such a concise appearance in an hour!

An hour......

Not even enough for his students to fully understand this thing.

"You're definitely kidding......" Professor Joseph said stiffly, as his eyes fixed on the equation on the whiteboard.

The direction of the subject is obvious, and this sentence is of course for Lu Zhou.

However, this sentence obviously did not reach Lu Zhou's ears.

When Professor Joseph finally came to his senses, all that was left in the lecture hall was a sensational chatter, incredulous cries, and "God! ”、“Jesus-Christ！ Something like that.

And the man standing on the podium with those equations written on it......

It's long gone.

……

After coming out of the venue.

Lu Zhou, who closed the door with his hand, faintly heard a restless sound through the door panel.

And the movement of this voice seems to be not small, and even the soundproof door is about to be sealed.

"As for being so surprised?"

He's not bragging, but it's only taken an hour.

Lu Zhou, who muttered a little and realized that it might be a little bad if he continued to stay here, couldn't help but speed up his pace and walk away from the lecture hall.

However, just as he passed by the back door of the No. 1 lecture hall with his front feet, a young lady with short black hair who looked to be about twenty-four or five years old chased after him with a book and a notebook.

"Land God! Can I worship you as a teacher? There were little stars flashing in her eyes, and a dodge blocked Lu Zhou's way, she said in an excited voice.

Glancing at the open back door, and then at the young lady with an adoring face, Lu Zhou suddenly said with a headache.

"You studied economics, right? I don't know anything about this, so you'd better find a more suitable mentor—"

Without wavering in the slightest, the young lady took a step forward, and her tone became even more excited.

"Just two minutes ago, I was impressed by your presence on stage! I finally understood where the future of economics lies! I also deeply understand my shortcomings, I, me, me! I want to learn math from you! ”

Lu Zhou: "......??? ”

Is this guy listening to people?

Seeing that the crowd was gradually pouring out of the back door, Lu Zhou knew that he might not have a chance if he didn't make a choice, so he took a deep breath and said.

"I'm sorry, you're a good person!"

Little Sister: "??? ”

Anyway, without giving the young lady time to react, Lu Zhou quickly took a step to the side to bypass her and flashed in the direction of the elevator.

Just kidding, he has to run for half an hour every morning exercise, and in his heyday, even a British journalist can't catch up, let alone a few scientific research dogs who have been hollowed out by papers.

"Eh, wait a minute, Lu, Lu God! Don't run~~"

Looking at the slowly closing elevator door, and the young lady who was chasing after him, Lu Zhou, who pressed the door closing button, the corners of his mouth curled up a little.

"It's too weak."

Click.

The doors of the elevator closed and began to move upwards.

Several people in the elevator looked at each other, looked at the man standing in front of the elevator door, and then exchanged confused looks.

What's going on?

……

Although you do not have a room at the hotel to check in, you can still use the hotel elevator with a special access card that you can exchange for an invitation letter.

Arrived at the floor where the executive lounge was located, Lu Zhou, who walked to the front desk, showed the card in his hand, and then sat down on a booth farthest from the door, with a window on the left and a bookshelf on his back.

"What would you like to drink?"

"Just give me a cup of coffee...... Give me a few more pieces of paper. ”

"Is A4 paper OK?"

"Yes."

"Yes sir."

After asking Lu Zhou's needs, the waitress turned around and left with the tray in her arms.

took out the mobile phone from his pocket and put it on the table, and Lu Zhou, who opened the lock screen, looked at the time.

It's only two o'clock in the afternoon, and it's still a long time before the cafeteria opens.

"Shouldn't it be enough?"

Staring at the time on his phone, Lu Zhou whispered to himself.

At this moment, the waiter just now walked back with a stack of paper paper.

"I've got the A4 paper you wanted, and I'll have to wait a little longer for coffee."

Lu Zhou nodded his thanks, and after taking the paper, he said casually: "It's okay, I'm not in a hurry if I have coffee, just send it over when it's ready." ”

Paper is available, and pens are readily available.

Picking out the most pleasing souvenir from his pocket, Lu Zhou put the attached ink bladder on it, then pinched the pen and lightly clicked on the paper, and after thinking for a while, he picked up the pen and wrote.

In fact, he did not completely understand the previous briefing.

Although he does not have a reserve of knowledge about economics in his memory, combined with the information provided to him by Xiaotong before, according to the content explained by Professor Joseph, he basically has an in-depth understanding of the application of the Lu-Bewley model in economics and the definition of the Lu-Bewley model in the economic community.

It was only after learning about these things that he realized that it was not an accident that Professor Joseph had a wrong understanding of the Lu-Bewley model.

It can even be said that the fault is not entirely on him.

This situation is common for the study of applied mathematics.

There are things that are obvious to him from his point of view, but it is these things that are obvious to him that are really the most difficult to understand for scholars in other fields who are not engaged in mathematics.

“…… Professor Krugman's speculation is indeed correct, and there is room for further improvement of the Lu-Bewley model, not only in a mathematical sense, but also in an economic sense. ”

Sorting out what he had heard at the conference in his mind, Lu Zhou turned the whole topic into a mathematical modeling topic, and focused on writing down the new understanding of the Lu-Bewley model that he had generated at the presentation meeting, line by line.

Soon, a sheet of A4 paper was already full.

Looking at the results that he had spent about ten minutes writing down, Lu Zhou, who had completely completed the sorting out of his thoughts, gradually hooked up a smile on the corner of his mouth.

"It's not a particularly interesting thing, but now that I've studied it, I've done half of the work well......

……

It turns out that when people get into a state of concentration, time tends to pass quickly.

I don't know when it began, but the sky outside the window has gradually become dim.

The mobile phone on the table vibrated slightly, and a line of messages popped up.

Xiao Ai: [Master, there is a new email~(??????)?? 】

Stopping the pen in his hand, Lu Zhou looked at the sky outside the window, and asked casually, "Did Professor Krugman send it?" ”

Xiao Ai: [Huh? Worthy of the host, I guessed it completely! (??? *)】

Lu Zhou: "What did he say in the email?" ”

Ai: [He asked if you had time to have dinner together.] ⊙▽⊙】

Shaking the dozen or so sheets of A4 paper in his hand that were almost full, the last page that was almost finished, Lu Zhou thought for a moment before speaking.

"Write a letter back to him for me."

"If he's willing to wait until seven o'clock, I'll go to the appointment."