- aggregation
- AGM
- agreement
- agricultural protection
- aid
- Aid to Families with dependent Children
- All-Share Index, Financial Times
- allocation, resource
- allocative efficiency
- allowance
- allowances, capital
- alpha stocks
- amalgamation
- American Federation of Labor and Congress of Industrial Organizations
- amortization
- amplitude of oscillation
- analysis of variance
- anchor, nominal
- animal spirits
- announcement effect
- annual general meeting
- annual report and accounts
- annualised percentage rate of interest
- annuity
- ante, ex
- anti-dumping action
- anti-dumping duty
- anti-monopoly policy
- anti-pollution measures
- antitrust
