Financial sector

Functions of the Financial Sector

The financial sector — banks, insurance companies, investment firms, stock markets, and other financial institutions — performs essential functions that underpin economic activity:

• Financial intermediation — channelling funds from savers (who have surplus money) to borrowers (who need money for investment or consumption). Banks accept deposits and lend them to businesses and households, mobilising savings for productive use.
• Risk management — enabling individuals and businesses to protect against adverse events. Insurance spreads risk across many policyholders; derivatives and other financial instruments allow risk to be hedged and transferred.
• Facilitating payments — the payments infrastructure (card networks, banking systems, international transfers) enables commerce at every level from retail to international trade.
• Providing liquidity — financial markets allow assets to be bought and sold quickly, enabling businesses and individuals to convert investments to cash when needed.
• Price discovery — markets establish prices for assets, currencies, commodities, and interest rates, providing information signals for economic decision-making.

Importance to the UK Economy

The UK has one of the world's largest and most significant financial sectors. Financial services contribute approximately 7–8% of UK GDP and employ around 1.1 million people directly. London is the world's leading international financial centre by many measures — foreign exchange trading, derivatives, international banking, insurance (Lloyd's of London). The financial sector generates substantial export earnings (financial services surplus) and tax revenues for the government.

Risk and Insurance

Risk is the possibility of an adverse outcome — financial loss, injury, illness, or property damage. In economics, risk arises from uncertainty about the future. Individuals and firms are generally risk-averse — they prefer a certain outcome to a risky one with the same expected value.

Insurance allows risk to be pooled across many policyholders. Each pays a premium; when adverse events occur, those affected are compensated from the pool. Insurance enables individuals and firms to take on activities (driving, starting businesses, undertaking construction) they might otherwise avoid because the downside risk would be catastrophic. By spreading risk, insurance increases economic efficiency and activity.

Role of Stock Markets

The stock market (in the UK, the London Stock Exchange — LSE) allows companies to raise capital by issuing shares to investors, and provides a market where those shares can subsequently be bought and sold.

• Primary market — companies raise new capital through Initial Public Offerings (IPOs) or rights issues, selling new shares to investors. This funds investment in new capacity, research, and growth.
• Secondary market — existing shares are traded between investors. This provides liquidity — investors know they can sell their shares, making them willing to invest in the first place.
• Corporate governance — publicly listed companies must meet disclosure and governance requirements, improving accountability and transparency.
• Economic signal — share prices reflect investors' collective expectations about companies' future profitability. Rising share prices can boost consumer wealth and confidence; falling markets can signal economic pessimism.