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Week 4 · Lecture Slides & Videos

Elasticity & Consumer Welfare

Prof. Naveen Sunder

Two slide versions are available: the clean version for pre-lecture review, and the annotated version with in-class notes and worked examples. Lecture videos are listed below.

Clean slide deck for Week 4. Covers price elasticity of demand, the point and arc formulas, how elasticity varies along a linear demand curve, total revenue and pricing decisions, income and cross-price elasticity, consumer surplus, and market demand aggregation. Use this for pre-lecture review.

Annotated Lecture Slides

The same deck with the professor's in-class annotations, notes, and worked solutions added. Use this after lecture to review what was covered and fill any gaps in your own notes.

Asynchronous videos covering elasticity formulas, elasticity along a linear demand curve, total revenue and pricing strategy, consumer surplus, and market demand aggregation.