Keynesian so-called economics just offers politicians an excuse to do what they always want to do: tax, inflate, borrow, and spend. From Daniel Lacalle at dlacalle.com:
The evidence from the last thirty years is clear. Keynesian policies leave a massive trail of debt, weaker growth and falling real wages. Furthermore, once we look at each so-called stimulus plan, reality shows that the so-called multiplier effect of government spending is virtually inexistent and has long-term negative implications for the health of the economy. Stimulus plans have bloated government size, which in turn requires more dollars from the real economy to finance its activity.
As Daniel J. Mitchell points out, there is evidence of a displacement cost, as rising government spending displaces private-sector activity and means higher taxes or rising inflation in the future, or both. Higher government spending simply cannot be financed with much larger economic growth because the nature of current spending is precisely to deliver no real economic return. Government is not investing; it is financing mandatory spending with resources of the productive sector. Every dollar that the government spends means one less dollar in the productive sector of the economy and creates a negative multiplier cost.
When society decides to use a certain part of the resources generated by the productive sector for non-economic return activities, be it social spending or mitigation of threats, it can only do it by understanding how much of the productive capacity of the economy is able to sustain a larger cost. When costs are not considered as a burden, but considered as entitlements that can only grow, the productive capacity is not strengthened, but weakened.
STRAIGHT LINE LOGIC 