Conversely, if Frank Perdue genetically engineers a superchicken that lays many more eggs than the normal bird, the price of eggs will plummet. He need only look at the price. In a free market, there is no need for planners to bring supply and demand into line. The daily transactions of millions of consumers do so, leavened by the risk-bearing entrepreneurs. It is the mixed economy itself that creates the demand for economic planners to run it.
Massive deficits destabilize the economy, leading to calls for government to stabilize it.
Government spending may increase the demand for some goods and services, but it drains resources from the private economy just as surely as taxes. We can't know. We can only know that the effect is gigantic, harmful, and growing. In the private sector, self- interest works to the common good. In the public sector, it means expansion of the government's budget and power, which attacks the common good.