Nobel laureate Richard H. Thaler has spent his career studying the radical notion that the central agents in the economy are humans--predictable, error-prone individuals. Misbehaving is his arresting, frequently hilarious account of the struggle to bring an academic discipline back down to earth--and change the way we think about economics, ourselves, and our world.

What do modern academic economists do? What currently is mainstream economics? What is neoclassical economics? And how about heterodox economics? How do the central concerns of modern economists, whatever their associations or allegiances, relate to those traditionally taken up in the discipline?

Are humans at their core seekers of their own pleasure or cooperative members of society? Paradoxically, they are both. Pleasure-seeking can take place only within the context of what works within a defined community, and central to any community are the evolved codes and principles guiding appropriate behavior, or morality.

In the graveyard of economic ideology, dead ideas still stalk the land.

The recent financial crisis laid bare many of the assumptions behind market liberalism—the theory that market-based solutions are always best, regardless of the problem. For decades, their advocates dominated mainstream economics, and their influence created a system where an unthinking faith in markets led many to view speculative investments as fundamentally safe.