Byeong-Hak Choe

September 28, 2026

Time → value · Week 06

Finish resource allocation, then begin valuing nature

Resume Lecture 5 at page 16, the start of the neodymium market model. Use Classwork 5 to allocate a fixed resource stock across two generations, then turn to values that market prices do not capture.

Sep 28–Oct 2Lecture 5 · Start at p. 16TL Chs. 6–7 → Ch. 4

Focus

  • Marginal net benefit and two-period allocation
  • User cost, scarcity rent, and the timing of extraction
  • The transition from market outcomes to valuing nature

Prepare

  • Review Lecture 5 through page 15
  • Read TL Chapters 6–7; begin Chapter 4 for valuation
  • Bring a calculator for Classwork 5

Practice

  • Derive marginal net benefit from demand and supply
  • Allocate gravel between present and future generations
  • Identify benefits that have no direct market price

Guiding question

How much of a fixed stock should we use now, and what values might a market price leave out?

Learning targets

  • Derive marginal net benefit and compare it across two periods using present value.
  • Find an efficient allocation of a fixed resource stock and explain its user cost.
  • Connect scarcity rent to a resource owner’s decision about when to extract.
  • Recognize why valuing nature requires more than observing market prices.

In-class sequence

Continue Lecture 5 from page 16, work through the two-generation gravel allocation in Classwork 5, and introduce Valuing Nature I after completing the resource-allocation topic.

Lecture slides

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Lecture 5 · Resource Allocation Over TimeBegin at page 16

This week’s materials

Coming next

Week 7 continues Valuing Nature with revealed-preference methods and benefit transfer.

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