SAN FRANCISCO — Silicon Valley is in danger of creating its own digital divide.
The California region is losing its middle-class work force at a significant rate, according to an annual report that tracks the economic, social and environmental health of the region that is the nation’s technology heartland.
The 2008 Index of Silicon Valley — which this year was sponsored by Joint Venture: Silicon Valley Network, a public-private partnership, and the Silicon Valley Community Foundation, a nonprofit — found that from 2002 to 2006, middle-wage jobs fell to 46 percent of the work force, from 52 percent.
At the same time, while the percentage of higher-end jobs rose slightly — to 27 percent from 26 — lower-wage jobs expanded to 27 percent, from 22 percent of the work force. In all, more than 50,000 middle-income jobs have disappeared over the four years measured by the study.
The vanishing jobs — defined as those paying $30,000 to $80,000 — represent workers who had been in the lower part of the white-collar pyramid, including secretaries, clerks and customer support representatives. The picture was blurred, however, by growth in some blue-collar, middle-income professions like electricians and plumbers, and several white-collar areas like computer support technicians.
