“Economics” in love

  Whether it is a star or an ordinary person, choosing a spouse in science is a compulsory course. In addition to following the guidance of inner feelings, you must also rely on the power of science. In fact, the most suitable for guiding marriage and love is economics. As an ancient discipline, economic principles have influenced people ’s spouse selection for thousands of years.
Timing of marriage: optimal stopping theory

  In 1611, the wife of the great astrophysicist Johannes Kepler died. Two years later, scientists are preparing to reorganize the family.
  Astronomers choose spouses, and the process is naturally very “hard core.” Because Kepler ’s last marriage was not happy, so this time he took out the spirit of astronomy, listed a number of parameters, carefully studied the ladies in contact, and sought to find the perfect object. Find an asteroid.
  Kepler, like an interview, met each other on a blind date. When he saw the fifth woman, he brightened his eyes, and was moved by the other’s hardworking family, kindness and loyalty. I wanted to close this, but the idea of ​​”whether the next one is better” drove him to continue to hunt for love in the love field.

  In the end, Kepler met a total of 11 ladies, but he did not find a better one. Instead, he always cared about the fifth lady. On the way to a speech one day, he suddenly made up his mind, turned around and went to the fifth lady’s house, cheekyly proposed to the lady whom he had rejected. Fortunately, the other party agreed.
  In this way, Kepler married the woman named Susan Reutlinger, and the two gave birth to six children. They live happily and grow old together.
  Not everyone can be as lucky as Kepler. His story left us with a myth: how many objects should a person interact with before he should give up the idea of ​​”next is better” and determine his own Ideal partner? In other words: when should I close?
  This problem is an emotional problem on the surface, but a mathematical problem in essence. Its systematic solution will wait until the 1960s after 340 years.
  In February 1960, “Scientific American” published a set of mathematical problems, one of which is a “classical secretary problem” of the same nature as the Kepler blind date problem: suppose there are n candidates to apply for secretary positions, you are interviewed Officer, interview them one by one and decide whether to hire them on the spot. Yes, the interview is over; don’t, change to the next one, you can’t go back and hire the rejected person. So, what kind of strategy can maximize the probability of being selected?
  The best solution to this problem is called “Optimal Stop Theory”. The derivation process is not repeated here, in short: do not accept anyone ’s application when examining the top 37% of applicants, and then as long as any one applicant is better than the previous 37% of applicants, Choose him without hesitation.
  If this conclusion is used in love, it is: To find the most ideal object, you should decisively reject the top 37% of suitors (no matter how good they are), and then meet a better candidate than the previous 37% , Decide to marry her / marry him, regardless of whether there is a better one behind.
  Taking Kepler as an example, he arranged 11 blind dates for himself. The method of finding the ideal wife with the highest probability is to give up the first 37% of the candidates, that is, 11 × 37% ≈ 4 ladies, and then start from the fifth. As soon as the next lady is more emotional than the previous four, she immediately ends the blind date and marries the lady.
  In fact, the fifth lady Kepler met was better than the first four, and Kepler was completely attracted to her. Probably speaking, this lady is most likely Kepler’s ideal wife, and it turns out to be true. After he completed 11 blind dates, Kepler did not find it better than the fifth place, so he could only get back to the fifth place.
Pareto optimal: what kind of spouse is best for you

  Before answering this question, we must first understand an economic concept.
  The 1992 Nobel Prize winner in economics, Professor Gary Becker of the University of Chicago, once put forward this theory: “Individuals seek to maximize their utility by finding a spouse.” According to Becker’s thinking, marriage should be a pursuit of Pareto Excellent process.
  Pareto optimality is an important concept in economics. It refers to the fact that it is impossible to make someone’s situation better without making anyone’s situation worse. The process of pursuing Pareto optimality is called Pareto improvement.
  The marriage of two people is a process of pursuing Pareto improvement. We can adopt a mature model. Assume that the quality of life of boys before marriage is denoted by X, the quality of life of girls before marriage is denoted by Y, and the life created by the two after marriage is represented by a variable m that changes with time. They share the resources of both parties after marriage. The income per person is (X + Y + m) / 2.
  The first few years of “complementary advantages” will encounter stumbling blocks, but the more space Pareto can improve in the future, the marriage path will be smoother; the marriage of “the right to match” will be smooth in the first few years, but because of the excessive pursuit of consistency , The lack of complementarity, the further the Pareto room for improvement, the greater the possibility of problems.
  If your career is advancing by leaps and bounds, try to find an object with complementary strengths. The initial stumbling block will be offset by your rapid achievements; if your life is dull in the foreseeable future, then find an object that is right for you. Perhaps a better choice.
Pre-marriage investigation: May I ask your mother’s surname

  It is said that in Shanghai, blind date, every problem is a sword and sword, step by step. For example, a sentence like: “Boy, does your home park well? How much does it cost to park? Can’t you go home and block it?”
  This kind of problem full of routines and traps is actually the simplest premarital investigation method. Many students who do not understand the doorway are often eliminated and do not know why.
  There is a friend, who is called “Ciqikou Jiangshuying”, looks beautiful, not to mention, is also a good hand in the company’s research. On one occasion, a friend introduced a “rich second generation” in Hebei to her, saying that she had just returned from studying in the UK and was doing a tire business at home. She was a joint venture with a foreign company and had an annual profit of tens of millions of yuan.
  She spent two days. With this information, she first went to the Tire Industry Association to select qualified companies, then used the tax payment information to narrow the scope, and finally used “Tianyancha” to pull the equity relationship, successfully narrowing the scope to two companies: two The actual controlling shareholders of the enterprise are women, about 50 years old.
  So, when she first dated this “rich second generation”, she asked a question that ordinary girls would not ask: “Auntie’s surname?”
  This beautiful woman who does not take the usual path is actually not a blind date, but Is satisfying his desire for inquiry. After the “rich second-generation” answered the strange question of his mother’s surname, she immediately took the seat and spoke out the name, company, address, equity, financing, and litigation of the “rich second-generation” mother in one go. The person opposite The jaw almost fell.
  After the lecture, she drank a large glass of soda, and then greeted the waiter to pay the bill, and told the “rich second generation”, in fact, I am not very interested in you, and then went away dashingly. I asked her later, because you researched the risks of his family business? She shook her head and said, “It’s not. I’m not interested because he’s ugly.”
  Of course, all economic methodologies may eventually fail in the face of love. After all, reason and logic are the driving forces of our evolution, but emotions and love are the basis for us to transform into “humans”.