The requirement that all workers of certain grades in a given business or establishment belong to a recognized trade union. This is desired by unions to increase their income and bargaining power.

• innocent entry barriers
• innovation
• input-output
• input prices
• inputs
• inside money
• insider dealing
• insiders and outsiders
• insider trading
• insolvency
• Inspector of Taxes
• instalment
• institutional economics
• institutional shareholder
• instrument, policy
• insurance
• insurance company
• intangible assets
• integer
• integer constraint
• integral
• integration
• intellectual property
• intensity, capital
• intercept