In The General Theory of Employment, Interest, and Money, , ohn Maynard Keynes
wrote: If the Treasury were to fill old bottles with banknotes, bury them at
suitable depths in disused coal mines which are then filled up to the surface
with town rubbish, and leave it to private enterprise \(\ldots\) to dig the
notes up again \(\ldots\) there need be no more unemployment and, with the help
of the repercussions, the real income of the community \(\ldots\) would probably
become a good deal greater than it is. Which important macroeconomic effect is
Keynes discussing here? What does he mean by "repercussions"? Why does he
appear unconcerned about whether government spending is wasteful?