You're confusing a number of issues.
For one thing, the Second World War mobilized the US (and many other) economies on a scale never seen before, or since. Factories were rolled over from consumer production to war materiel production at an amazing pace. New machinery was developed, and new engines of war were developed. Radar was invented, amongst other things.
All of the innovations made during the War were examined in its aftermath, and countless improvements in our daily lives are directly attributable to those advances, not the least of which was affordable, mass-produced appliances.
If anything "killed" the US industrial economy, it has been the flow of money (especially tax dollars) and increased shareholder demand for greater and greater profits. Add to the decreased affordability of production in the US, the ever-increasing ecological demands placed on manufactories in the US (but likely not in third-world nations) and it's not difficult to see the migration of US-owned businesses abroad. The payroll is cheaper, the regulations lighter, and the bottom line grows.
The US has been, for a few decades, a primarily service-oriented economy. The big problem there, of course, is that service sucks. |