The miscalculation that I believe economists are making is the massive shift in leverage between the laborers and the owners. Historically, the two were balanced to the point that creating greater economic growth would tip the scales in the laborers' favor, thus increasing wages and inflation. What's happening now is that, due to many factors including outsourcing, illegal immigration, lobbying(bribery), capital conc…
We've learned through the decades---and especially through the bailouts in the late 2000s---that slapping big business on the wrist is not enough to stop cronyism and government-enabled monopoly. The only way to eliminate that is to cut the snake off at its head; if there is no power to dole out, lobbying wouldn't exist.
If the government can't choose who succeeds and who fails, then only those who provide value can succeed. The only way to grow a business without a monopoly is to employ people (whether directly, or indirectly by investing capital).