Supply does not create demand in the sense that if I produce a chair demand will suddenly spring into life for it, i.e. demand will always and everywhere equal supply.
I don’t disagree with the statement above, but I stated that “supply creates markets,” which is something different entirely. If there’s no one producing personal computers, then there cannot be a market for personal computers (even though there may be a demand). Following on with the personal computer example, there was plenty of demand for the types of machines that we have today in the 1950s, but since no supplier was able to offer the product there was no market.
American companies were able to develop mature products and offer new technologies that European companies could not deliver after the war. It simply took some time to catch up. Acquiring capital and developing technologies takes time. That’s my theory, anyway.
As to the statement that the American economy would have grown faster yet if Europeans were richer, I cannot agree or disagree because it’s something that simply cannot be known. Perhaps the growth in the American economy after the war is simply due to shaking off some of the shackles of the FDR administration, but I’ve noted that markets are rarely simple enough to boil everything down to any single contributing factor. I believe that the decimation of the former competition in Europe contributed to the success of many American companies in many sectors. The success of those companies encouraged them to invest more in workers and facilities and created wealth in America.
One way to look at it might be: If all of Intel’s manufacturing facilities burned to the ground in a fire, AMD would benefit. They’d probably expanding to deal with the increased demand, hire new people, and might pay higher wages to reduce turnover. The same principle could apply to countries rather than individual companies. Remember, while many producers were in Europe and America in the mid-20th century, consumers were all over the world. Demand comes from everywhere.
However, at the end of the day, we’re just splitting hairs. I think that we can agree that freer markets equal more prosperity. Keynesians think otherwise… and I think that this sentement is their own validation of their worldview that people cannot be too free for fear that they will destroy themselves.
I agree, however, that the view that catastrophes can pull people out of economic hardship is hogwash. The recent earthquake and subsequent tsunami in Japan caused massive destruction and destroyed gobs of capital. Yet, it amazes me when I see pundents state things like “Japanese growth may rebound as rebuilding efforts are likely to have an inflating effect on Q4 Japanese GDP”. Rediculous Keynesian nonsense. This is the rubbish that they teach in public schools.