About 9 in 10 Americans approve of organ donation. However, less than one in three people sign up to be a donor after death.

In Europe, organ donation rates differ dramatically from country to country. In Austria, France, Hungary, Poland and Portugal, more than 99 % of people consent to donate. On the other hand, the consent rate in the United Kingdom is 17% and in Germany 12%. In the United States, it is 28%.

How come that some countries have such high consent rates and others low?

It has to do with making the organ donation the default choice. Countries such as France and Poland make organ donation the default choice while the other don't. The thing is that most people go along with the default option.

A behavioral economist at the University of Chicago, Richard Thaler, says that God made us lazy and busy and prone to inertia and that countries such as the United States should rethink their default policies on organ donation.

Rather than making organ donation the default choice, Thaler suggested creating a system that forces people to make a choice one way or the other.

For example, when you go to get your driver's license, you would be required to check one of two boxes. This way, people will be nudged to make a choice instead of having to go out of your way to make a choice like it is working now under many current systems.

By having to choose, you cannot duck it. You have to say I am in or out.