Our outrage at inequality is primal. But primal emotions are not always noble ones. Of course, when I see a colleague receive some award, I covet it. But this is not me at my best, and these are not the feelings we would instill and promote in our children.

Sendhil Mullainathan

If you have urgent current expenses to cover, then future priorities like college and retirement fall off your radar because they are simply less pressing. Scarcity of attention prevents us from seeing what's really important. The psychology of scarcity engrosses us in only our present needs.

Sendhil Mullainathan

A few drugs - such as beta-blockers, statins and glycogen control medications - have proved very effective at managing hypertension, heart disease, diabetes and strokes. Most insurance plans charge something for them. Why not make drugs like these free? Not for everyone, but just the groups for whom they are provably effective.

Sendhil Mullainathan

If you go and stop people at a supermarket and ask them for their receipt and say, 'Hey how much did you just spend?' middle class shoppers have no idea. The poor know what they just spent.

Sendhil Mullainathan

You and I can be busy, and we take a vacation from work. You can't take a break from being poor. You can't say, 'Hey I've had enough of worrying about money, I'm just going to be rich for a couple of weeks until I've recovered.'

Sendhil Mullainathan

Web searching and cellphone use both flourish in the wee hours. Before the dawn of the web, I would stay up watching television. But there is something soporific about television: I would often nod off. Not so when I'm online. As technologies expand, these problems may only worsen.

Sendhil Mullainathan

One cost, for the lonely: If you want to be interesting, the one thing you shouldn't do is really focus on the fact that 'I want this person to like me.' That's going to make you very uninteresting. But the lonely, they just can't help but focus on that.

Sendhil Mullainathan

The ability to save automatically is among the most powerful tools available to us.

Sendhil Mullainathan

There's a popular image of people who don't save for the future as lacking in self-control. But the reason saving is so hard has less to do with self-control and more to do with a scarcity of attention.

Sendhil Mullainathan

No one would say, 'Hey, I think this medicine works, go ahead and use it.' We have testing, we go to the lab, we try it again, we have refinement. But you know what we do on the last mile? 'Oh, this is a good idea. People will like this. Let's put it out there.'

Sendhil Mullainathan

As a researcher, every once in a while you encounter something a little disconcerting. And this is something that changes your understanding of the world around you, and teaches you that you're very wrong about something that you really believed firmly in.

Sendhil Mullainathan

The amount of resources we put in are disparate. We put billions of dollars into fuel-efficient technologies. How much are we putting into energy behavior change in a credible, systematic, testing way?

Sendhil Mullainathan

Marketing is selling an ad to a firm. So, in some sense, a lot of marketing is about convincing a CEO, 'This is a good ad campaign.' So, there is a little bit of slippage there. That's just a caveat. That's different from actually having an effective ad campaign.

Sendhil Mullainathan

Busy people all make the same mistake: they assume they are short on time, which of course, they are. But time is not their only scarce resource. They are also short on bandwidth. By bandwidth I mean basic cognitive resources - psychologists call them working memory and executive control - that we use in nearly every activity.

Sendhil Mullainathan

Time can be dissected easily: an hour can be cut up in many ways. Fifteen minutes on this memo, a five-minute walk to another meeting, 30 minutes at that meeting and then 10 minutes debriefing. Oh, and maybe a quick phone call on the walk to that meeting. The busy are expert at dissection: that's how they make it all fit.

Sendhil Mullainathan

Maybe poverty is a special case of something else. That something else is 'scarcity,' and anyone who has the experience of 'having very little' experiences the same psychology.

Sendhil Mullainathan

It's hard to get people to empathize with the poor. You can get some people to sympathize with the poor, but to empathize is actually very hard, because most people are not poor. I realized that scarcity gives you a thread.

Sendhil Mullainathan

The scarcity trap captures this notion we see again and again in many domains. When people have very little, they undertake behaviors that maintain or reinforce their future disadvantage. If you have very little, you often behave in such a way so that you'll have little in the future.

Sendhil Mullainathan

It is safe to say that when people are short on cash, they might be less productive at work, be worse parents, and have less self-control.

Sendhil Mullainathan

Economists specialize in pointing out unpleasant trade-offs - a skill that is on full display in the health care debate. We want patients to receive the best care available. We also want consumers to pay less. And we don't want to bankrupt the government or private insurers. Something must give.

Sendhil Mullainathan

I worry about growing income inequality. But I worry even more that the discussion is too narrowly focused. I worry that our outrage at the top 1 percent is distracting us from the problem that we should really care about: how to create opportunities and ensure a reasonable standard of living for the bottom 20 percent.

Sendhil Mullainathan