Man is rational

At least two independent game participants

The players in the game have the possibility of strategy choice (that is, there is a strategy space)

Participants will get a certain payment under different combinations of strategies (usually represented by payment matrix)

For game participants, there is a game result

The game involves equilibrium, Nash equilibrium (all games have at least one Nash equilibrium point)

Cooperative game

Non-cooperative game

Static game

Dynamic game

Complete information game

Incomplete information game

Prisoner game

Cockfighting game

Riding a tiger

Zero-sum game

Coordination game

Coordinated attack problem

Definition

Basics

Note: Public knowledge is relative to a certain group. For example, public knowledge among scientists is not necessarily public knowledge of ordinary people.

In fact, it is to "wear a hat" on candidates, that is, the process of giving individual social attributes to the society

In the distribution of the results of democratic voting, A>B, B>C does not necessarily lead to A>C, so democratic voting may not necessarily reflect the overall social preferences of the group. Such as Trump was elected President of the United States.

The power of each decision maker in decision-making is embodied in the number of times it can appear in the winning alliance as a "key joiner. The more the number, the greater the power. This number of occurrences is generally called the "power index."

Label

Claimed strategic decision

Real strategic decision

That is, no social preference function can be found, which can reflect the social preferences of all groups

When the polarization of social wealth is extremely serious and people's preferences are not expressed, most people demand the redistribution of social wealth, and revolutionary opportunities will occur. This is actually an extreme way of voting

For example, all herders in a pasture want to raise more cattle to make money, even if the unit income of cattle decreases because of the decline in the amount of grass. Eventually, the grass could not be loaded, and all the cattle starved to death.

Country (rules)

Moral

The future of collective action cannot be predicted in principle, because you don't know what you know in the future, and you don't know how much the things you know in the future will affect the future. At the same time, the past of collective action cannot be changed, because it is impossible for one thing to happen and not to happen, and it is impossible for a person to exist and not to exist. All, crossing does not exist in principle. The so-called prediction is only the possibility of developing in a certain direction in the future under certain conditions.

One of the most common methods of logic

Game theory is commonly used, but has many disadvantages

When the opponent participant makes a decision, he can accurately predict the opponent's behavior through the analysis of the final stage, thereby confirming his own behavior (similar to mathematical inversion)

If two people have the same pre-existing knowledge, and their post-examination knowledge of an event is public knowledge, then these post-examination knowledge are equal. Speaking of people means rational people who have different views on a thing at the beginning. Their views will be convenient under different information states. If the changed views are public knowledge, then their views should be consistent. For example, when investors have fully communicated that the information of all parties is exactly the same, under the same public knowledge, different rational people should get the same point of view

Creating risks for opponents, bringing them to the brink of disaster, and forcing them to yield (as the US military did in the Cuban missile crisis) can sometimes act on oneself, such as Xiang Yu.

Refers to randomly choosing different actions based on predetermined probabilities. If the king of Rutian Ji horse race chooses a horse at random to go out, his chances of winning can be increased

Too rude, if you can't think that a person will always be a bad person because he has done bad things. 2 It is useful when the summarized content is true and it has not become the public knowledge of everyone, but it becomes useless after becoming Everyone can increase their own income when they find that a certain kind of fertilizer can increase the yield. When everyone knows it, it will be useless.

No one can predict the number of people going to the bar with any method, because it is a chaotic phenomenon and unpredictable

That is, if the group becomes a minority, the benefit is greater. For example, investors are predicting the ideas of other investors, trying to become a minority of people who make money

British auction (second-price auction, more common)

First price sealed auction