Q.Explain in detail why infrastructure is often called the "support system" of an economy, and how weak infrastructure can hold back economic growth.

Infrastructure enables every other productive activity without itself being a final product, which is why it is called the economy's support system; weak infrastructure raises costs and limits growth across all sectors. …

Infrastructure is called the "support system" of an economy because, much like a building's foundation supports the structure above it without itself being a visible part of the finished building, infrastructure enables every productive activity in the economy without directly being a final good or service that consumers buy. No sector — agriculture, industry, or services — can function efficiently without a base of supporting facilities: economic infrastructure (power, transport, communication) that keeps goods and information moving at reasonable cost, and social infrastructure (education, health) that keeps the workforce capable and productive.

How weak infrastructure holds back growth:

1. Higher production costs. Unreliable power forces firms to rely on costlier backup generation; poor roads raise the cost and time of moving raw materials and finished goods, eating into margins and competitiveness.
2. Wastage and delays. In agriculture, especially, poor transport and storage infrastructure can lead to spoilage of perishable produce before it reaches the market, directly reducing farmers' effective output and income.
3. Reduced investment attractiveness. Firms, domestic or foreign, are less willing to invest in a region with unreliable power, poor connectivity or weak communication networks, since it raises the cost and risk of doing business there — limiting industrial and services growth in infrastructure-poor regions.
4. Lower human productivity. Where social infrastructure is weak — inadequate schools, limited healthcare access — the workforce is less skilled and less healthy, which caps productivity gains even where economic infrastructure (power, roads) is reasonably developed, since it is ultimately people who operate every sector.
5. Regional inequality. Because infrastructure is often unevenly distributed, regions with weaker infrastructure tend to attract less investment and grow more slowly than better-connected regions, widening regional economic disparities within the country. …

A common shortfall is listing only economic infrastructure's effects (cost, delay) while forgetting social infrastructure's equally important role in sustaining worker productivity — a complete answer must cover both categories and …