How do you define altruism? In your work, you speak of reciprocity. What is that?

An act is altruistic if it benefits another at a cost to yourself, where there is

How did you get interested in studying altruism?

I studied all of the behavioral sciences — biology, psychology, sociology, political science, economics, and anthropology — and I thought that it was crazy that these fields could have completely different theories of how people behave. Not only different, they’re contradictory. We’re part of the Network of the Nature and Evolution Process. About 18 people work for it — economists, biologists, anthropologists, psychologists. We use the experimental game theory to see what people want to do, what their preferences are.

What have you found about human beings and their preferences?

Economists have a model of choice that’s called the rational actor model. It generally assumes that people are selfish. In fact, that’s a very important part of it. And one of the things we wanted to do is test whether or not that is the case. We found out that it is not the case. It’s a rather very interesting phenomenon: People tend to be predisposed to cooperate with others at a cost to themselves as long as others will also cooperate. And people are willing to punish others when they do not cooperate.

The reason humans are so successful is normally attributed to the fact that they’re smart. The reason they’re smart is because humans operate in complex groups. The reason they can operate in complex groups is that they have strong reciprocity: Not only do they share, but they’re willing to punish non-sharers. If you look at the whole range of social species, you find that punishing is very important.

Take bees. You always think of the hive as the big social collective, everybody does what they’re supposed to do. But that’s not true. Workers often try to lay eggs, even though only the queen is supposed to lay eggs. If workers lay eggs, there are other workers that run around, eat the eggs, then punish the workers that laid the eggs. Wherever you find cooperation, you’ll also find punishment. Think of your own body. Each cell has its own self-interest to multiply. Why don’t they go berserk? How do you get cells to cooperate? The answer is, you punish cells that don’t cooperate. As far as we know, there is no other vertebrate species that punishes. Humans are by far the most social vertebrate species and we argue that that’s why humans are so cooperative.

How do you define altruism? In your work, you speak of reciprocity. What is that?

An act is altruistic if it benefits another at a cost to yourself, where there is n

I studied all of the behavioral sciences — biology, psychology, sociology, political science, economics, and anthropology — and I thought that it was crazy that these fields could have completely different theories of how people behave. Not only different, they’re contradictory. We’re part of the Network of the Nature and Evolution Process. About 18 people work for it — economists, biologists, anthropologists, psychologists. We use the experimental game theory to see what people want to do, what their preferences are.

What have you found about human beings and their preferences?

Economists have a model of choice that’s called the rational actor model. It generally assumes that people are selfish. In fact, that’s a very important part of it. And one of the things we wanted to do is test whether or not that is the case. We found out that it is not the case. It’s a rather very interesting phenomenon: People tend to be predisposed to cooperate with others at a cost to themselves as long as others will also cooperate. And people are willing to punish others when they do not cooperate.

The reason humans are so successful is normally attributed to the fact that they’re smart. The reason they’re smart is because humans operate in complex groups. The reason they can operate in complex groups is that they have strong reciprocity: Not only do they share, but they’re willing to punish non-sharers. If you look at the whole range of social species, you find that punishing is very important.

Take bees. You always think of the hive as the big social collective, everybody does what they’re supposed to do. But that’s not true. Workers often try to lay eggs, even though only the queen is supposed to lay eggs. If workers lay eggs, there are other workers that run around, eat the eggs, then punish the workers that laid the eggs. Wherever you find cooperation, you’ll also find punishment. Think of your own body. Each cell has its own self-interest to multiply. Why don’t they go berserk? How do you get cells to cooperate? The answer is, you punish cells that don’t cooperate. As far as we know, there is no other vertebrate species that punishes. Humans are by far the most social vertebrate species and we argue that that’s why humans are so cooperative.

How do you define altruism? In your work, you speak of reciprocity. What is that?

An act is altruistic if it benefits another at a cost to yourself, where there is

Economists have a model of choice that’s called the rational actor model. It generally assumes that people are selfish. In fact, that’s a very important part of it. And one of the things we wanted to do is test whether or not that is the case. We found out that it is not the case. It’s a rather very interesting phenomenon: People tend to be predisposed to cooperate with others at a cost to themselves as long as others will also cooperate. And people are willing to punish others when they do not cooperate.

The reason humans are so successful is normally attributed to the fact that they’re smart. The reason they’re smart is because humans operate in complex groups. The reason they can operate in complex groups is that they have strong reciprocity: Not only do they share, but they’re willing to punish non-sharers. If you look at the whole range of social species, you find that punishing is very important.

Take bees. You always think of the hive as the big social collective, everybody does what they’re supposed to do. But that’s not true. Workers often try to lay eggs, even though only the queen is supposed to lay eggs. If workers lay eggs, there are other workers that run around, eat the eggs, then punish the workers that laid the eggs. Wherever you find cooperation, you’ll also find punishment. Think of your own body. Each cell has its own self-interest to multiply. Why don’t they go berserk? How do you get cells to cooperate? The answer is, you punish cells that don’t cooperate. As far as we know, there is no other vertebrate species that punishes. Humans are by far the most social vertebrate species and we argue that that’s why humans are so cooperative.

How do you define altruism? In your work, you speak of reciprocity. What is that?

An act is altruistic if it benefits another at a cost to yourself, where there is

Take bees. You always think of the hive as the big social collective, everybody does what they’re supposed to do. But that’s not true. Workers often try to lay eggs, even though only the queen is supposed to lay eggs. If workers lay eggs, there are other workers that run around, eat the eggs, then punish the workers that laid the eggs. Wherever you find cooperation, you’ll also find punishment. Think of your own body. Each cell has its own self-interest to multiply. Why don’t they go berserk? How do you get cells to cooperate? The answer is, you punish cells that don’t cooperate. As far as we know, there is no other vertebrate species that punishes. Humans are by far the most social vertebrate species and we argue that that’s why humans are so cooperative.

How do you define altruism? In your work, you speak of reciprocity. What is that?

An act is altruistic if it benefits another at a cost to yourself, where there is

How do you define altruism? In your work, you speak of reciprocity. What is that?

An act is altruistic if it benefits another at a cost to yourself, where there is no possible mechanism whereby you could gain even in the long run somehow: Long term benefit to someone else with a long term cost to yourself. We call that altruism. By the way, it could be a long-term benefit to a group at a long-term cost to yourself. We want a definition of altruism that isn’t subjective and also extends to animals. There is altruism in animals. It almost always depends on kin groups — that is, you’re nice to your kids, which is a biological objective.

There are really two types of reciprocity. Generally, before the work we did, reciprocity meant I help you if you help me. And that, of course, is not altruism. What we study — “strong reciprocity” — is a predisposition to cooperate, even when it’s costly, and a predisposition to punish violators, free riders.

The problem with the term “altruism” is that there are many forms of altruism. For instance, unconditional altruism is where I help others no matter what. I just help. That’s altruism, but it’s not strong reciprocity. Mostly people think altruism is goody-goody or warm and fuzzy. But, the biggest part of making society work is needing to retaliate, wanting to hurt people who hurt you. It’s much more important than the precondition to cooperate, because if you don’t have punishment, you can’t get cooperation. Strong reciprocity can be cooperation and conditional punishment.

So, we believe the heart of altruism is not only the willingness to cooperate and help — empathy and caring for others — but also this negative side of human nature: retaliation or retribution.

Let me give you an example that you would not even think is altruistic normally, but is: road rage.

What exactly do you mean by road rage and how is that altruistic?

Pathologically, it’s when somebody behaves badly on the road and you shoot them. Usually, though, when people drive through a yellow light or are in a wrong lane, people honk their horns, shake their fists at them. Our argument is that this behavior of getting angry at another driver, who you’re never going to see again, has strong reciprocity. It helps keep people honest.

If you don’t drive the proper way, some guy honks his horn and you feel humiliated; you’ve done a bad thing and you got caught. But he didn’t do it because he cared about keeping people honest. He honked his horn because he was pissed at you. This is true in subjective altruism. By honking your horn or yelling at someone for doing a bad thing, this is an altruistic act. It might have cost you something, not much