The criteria for inscription in the World Heritage List are defined in the Statement of Outstanding Universal Value.

UNESCO: OFFICE IN KATHMANDU

Its Animal and Plant Health Inspection Service had long regulated the importation and interstate movement of plants and plant products that are pests, which were defined by means of an inclusive list.

FORBES: Back To The Future: Let's Reverse 25 Years Of Flawed Agbiotech Regulation

The list of higher emotions is not as well defined as that of the baser ones, but they include things such as guilt, embarrassment, shame and sympathy.

ECONOMIST: Emotion is essential to human survival

It is relatively straightforward to generate a simple list of problems that can be reliably and validly defined.

BBC: 'Grief and anxiety are not mental illnesses'

The list of these risks is so long and ill-defined that Mr Shiller thinks it better to concentrate on bigger, national numbers instead.

ECONOMIST: Political economy

And now with the definition of classic rock defined to include the 90s (I know, I know), there are actually some good tunes on the list.

FORBES: Killing the Sacred Cows on Your Year-End Classic Rock Countdown