Where can I find statistics, including books and magazine articles,
which measure the import and export of
intellectual capital to/from the U.S., China, India, etc., to include
an annual balance-of-trade deficit/surplus in intellectual-capital
flows, measured in dollars?  This is analogous to the calculation of
the balance-of-trade deficit/surplus for tangible goods.  The
statistics I seek will measure the flow of intellectual capital in
major job categories -- e.g. computer programming, business modeling,
design of highly-automated automobile assembly lines -- and will
provide insight into the net outsourcing or insourcing of intellectual
work.

This paper might be of interest to you:

POLICY RESEARCH WORKING PAPER 
International Migration, Remittances, and the Brain Drain
http://www-wds.worldbank.org/servlet/WDSContentServer/WDSP/IB/2003/07/08/000094946_03062104301450/Rendered/PDF/multi0page.pdf