economies of scowl

So this is what it takes to cheer me up at the moment.

Oliver Burkeman writes, in Saturday's Guardian:

"Experiments show that only two kinds of people behave like perfect little economists in every arena of life: economists and psychopaths."

Or, as per Keats (like my economist-speak there?):

When old age shall this generation waste,
Thou shalt remain, in midst of other woe
Than ours, a friend to man, to whom thou say'st,
'Beauty is truth, truth beauty,—that is all
Ye know on earth, and all ye need to know.'