I believe our government must intervene in the economy, not because the interventions work that well, but because the public as well as business demands that government do something. If you look at the history of feds manipulations of the money supply and interest rate changes, they have probably been wrong about as often as they have been right. Since there are so many factors affecting the economy and the time required for changes to take effect are at best a guess, there is no good way to measure the effect in terms of jobs and production. Increasing government spending to put more money in the hands of consumers is every bit as unreliable as fed policies.
No doubt fed actions and the increased government spending of the Obama administration has had some positive effects on the economy but was it worth the resulting deficit that the country will have to resolve. I guess economists will be arguing about this forever.
The government needs to intervene because enough people, when given the choice between considering themselves and considering the public, choose themselves.
Somebody has to say "No, you can't strip mine that valley even if you do have title to the land - it'll **** things up for the folks down stream."
Once we finish the civil war and get back to being an organization of independent states with a political relationship based on the original vision of the founders, America is going to lead humanity to the stars.
First stop is the moon, according to Huggy.