Mobilising for war involved spending billions, and pulled the US out of the Great Depression as New Deal spending hadn't been enough. Quantative easing to corre

Mobilising for war involved spending billions, and pulled the US out of the Great Depression as New Deal spending hadn't been enough. Quantative easing to correct the excesses of the banks in '08 involved spending trillions yet was more indirect and less effective than more traditional forms of stimulation. That spending invigorates economies is pretty much unarguable. Choosing more carefully, and directing where that spending goes is better than leaving it to the random walk of the market. Pretty much everything is made in China, yet installing those solar panels will require local companies and engineers. Were they made locally the boost might be higher, but so few products are made locally in our globalised world that it's probably harder to unwind globalisation than fix the climate with foreign made panels.