3. Comparative Statics a. Indirect Utility Functions b. Expenditure Functions and duality C. Expenditure Function and Price Indices d. Slutsky via Utility Functions e. Slutsky via Preferences3. Comparative Statics a. Indirect Utility Functions b. Expenditure Functions and Duality c. Expenditure Function and Price Indices d. Slutsky via Utility Functions e. Slutsky via Preferences