Sendhil Mullainathan — American Economist born on December 30, 1972,

Sendhil Mullainathan is a Professor of Economics at Harvard University, and the author of Scarcity: Why Having Too Little Means So Much. He was hired with tenure by Harvard in 2004 after having spent six years at MIT. He is a recipient of a MacArthur Foundation "genius grant" and conducts research on development economics, behavioral economics, and corporate finance. He is co-founder of ideas42, a non-profit organization that uses behavioral science to help solve social problems, and J-PAL, the MIT Poverty Action Lab. He has made extensive academic contributions with the including the National Bureau for Economic Research, and has also worked in government with the Consumer Financial Protection Bureau... (wikipedia)

Some struggle with medical issues - like insomnia - that make sleep hard. But for many of us, the quantity and quality of sleep come down to a matter of choice. Still, only a few enterprising economists have looked closely at this, and generally, those have assumed that we choose our hours of sleep optimally.
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.
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.
January is always a good month for behavioral economics: Few things illustrate self-control as vividly as New Year's resolutions. February is even better, though, because it lets us study why so many of those resolutions are broken.
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.