What does "stingy" have to do with it? It's just business.
Business? No, it's not business. Treasury floating T-Bills to the fed and pumping out trillions in debt is not "business." No business behaves in such a manner, if they try they are bankrupt in a matter of days.
If the demand is there for the goods your expanded business will produce, you invest the money and expand. If it's not, you don't. A business can't be called "stingy" for not investing money it's sure to lose. Nevertheless, when people are out of work, when demand for goods and services is down because people don't have money to spend, capital piles up and does nothing, not because business owners are stingy but because they're not stupid.
What does any of this have to do with deficit spending to create a multiplier effect in order to stimulate an economy out of a recession?
In situations like that, either the government invests the money or nobody does. The money is not removed from the productive economy because it wasn't being invested anyway.
Government investing in infrastructure or make work projects has zero impact on capital improvements by private concerns.
Obama sending $100 billion to the Teachers Union in California to support their retirement system didn't add a new mill for Pedro's Machine shop. Widening the 210 freeway didn't buy a new XRay machine for Dr. Huang's dental practice.
Nor were these funds even under the pretense of doing such.
Do you understand how Keynesian stimulus is supposed to work? I'm not trying to be insulting here, but it appears that you don't.
In VERY simplified terms, Keynes postulated that the recessionary portion of the business cycle was created by a lack of confidence in consumers which caused them to stop spending, creating a loop-back structure that reverberated through the economy and fed itself through further job loss, which led to less consumer spending, and the cycle spins.. Now Murray Rothbard demonstrated that this is not in fact correct, but this is the foundation for Keynesian theory.
So Keynes held the position that government spending in the market would have a similar reverberation, which Keynes calls the "multiplier effect." The government spends $100 on a make work project and pays Joe to dig a hole and fill it back in. Joe takes that $100 and buys groceries and gasoline. The grocer then replenishes stock due to selling, but buys more than he sold as he sees an upward trend. Ditto the gas station. Thus the effect of the government expenditure has spawned economic activity in excess of the $100 spent. The supplier of the grocer hires people to keep up with the new demand who are paid wages, who in turn buy goods, spawning more activity and soon the original $100 has spawned 4 or 5 times its original value, what Keynes called "5 turns."
That is the basic theory. Problem is, it doesn't work.
There was no massive spending on public works in the 1930s. It was not zero, but it was nowhere near enough.
So no WPA then?
As usual, pointless insults without cognitive content are snipped and will not receive a reply, as they deserve none.