What do Keynesians mean when they say that "you can't push on a string"?
a. An increase in the supply of goods does not really create its own demand.
b. If the government reduces taxes in an attempt to increase household consumption, it will not always work.
c. An increase in the money supply will not always stimulate the economy.
d. If the government wants to get something done, the best way is not to force the issue, but to offer incentives.
e. If the government puts too much expansionary pressure on the economy, it will probably "overheat."