Everyone knows what it’s like to lack something. Perhaps the most common example is time: too many things to do, not enough hours to get them done. Others struggle with too little money, or companionship, or access to health care.
These might all seem like very different issues. But according to Harvard University economics professor Sendhil Mullainathan and Princeton University psychology and public-policy professor Eldar Shafir in their new book, “Scarcity: Why Having Too Little Means So Much,” scarcity “forms a common chord across so many of society’s problems.”