This paper uses data form the U.S. Decennial Censuses of 1950 through 1990 to measure the growth of information workers in the U.S. economy and analyse the sources of their growth.

We examine a consensus in most recent long-term projections of the world oil market that OPEC oil capacity and production will increase rapidly over the next two decades to unprecedented levels, more than doubling in the Persian Gulf by 2020. Such projections are not based on behavioral analysis...