Although the investment costs were high, many energy-intensive industries successfully reduced their dependence on oil during the late 1970s and 1980s and enhanced their productivity. Advances in microcircuitry and semiconductors in the late 1970s and 1980s led to new growth industries in consumer electronics and computers, and to higher productivity in pre-established industries. The net result of these adjustments was to increase the energy efficiency of manufacturing and to expand knowledge-intensive industries.