Withdrawal of labour by a group of employees, normally members of a trade union. An official strike is one called or recognized by a union; an unofficial strike is one started without union authorization. A no-strike agreement commits workers to accept arbitration of disputes, and not to resort to strike action.

• shop steward
• shortage
• short-dated security
• short position
• short run
• short-run capital movements
• short-run cost curve
• short-run marginal cost
• short-run Phillips curve
• short-termism
• short-time working
• shut-down price
• SIB
• SIC
• sickness benefit
• side-effects
• side-payment
• sigma
• signalling
• significance, tests of
• silicon valley
• simple interest
• simulation
• simultaneous equations
• sine