Which stage in Rostow's Stages of Economic Growth is characterized by the expansion of modern technology across all sectors and the development of new, sophisticated industries like electronics and chemicals?

Solution

• Stage 3 (Take-off): This is the "brief interval" (often 20–30 years) where the economy transforms. While it sees the birth of modern industries, they are usually limited to one or two primary "leading sectors" (like textiles or railroads).
• Stage 4 (Drive to Maturity): This stage is defined by the diversification of the industrial base. Rostow describes this as the period when an economy demonstrates it has the technological and entrepreneurial skills to produce, not everything, but anything it chooses to produce. The "newest" developments of modern industries (such as heavy engineering, chemicals, and later, electronics) take root here, moving beyond the simple industrialization of the Take-off stage.
• Stage 5 (Age of High Mass Consumption): This stage shifts focus from how to produce to how to consume, prioritizing durable consumer goods (like cars and appliances) and services.
• Stage 2 (Pre-conditions for Take-off): This is a preparatory stage involving agricultural shifts and the buildup of social overhead capital (infrastructure), but not the widespread development of modern industry itself.