Marketplace Environment

The course arc

Supply. Demand. Power.

First read the market mechanism, then trace the shocks, then locate where the power sits — and ask whether it belongs there. — the course, in one line

Block I · The Market Mechanism

• m.01
  Why Trade Happens

  Prices are not imposed. They emerge from private valuations and costs.
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• m.02
  Supply, Demand & the Cost Taxonomy

  Fixed, variable, marginal, sunk. Only one of these is relevant to supply decisions.
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• m.03
  When Something Moves

  Elasticity decides whether a shock shows up as price or as quantity.
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Block II · Power, Strategy & Rents

• m.04
  The 1/2 Rule & Cournot

  A monopolist sells half the competitive quantity at a price halfway between MC and the choke.
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• m.05
  The HHI, Economic Rents & Innovation

  Concentration is measurable. Rents are the return on defensible capability.
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• m.06
  Four Structures. One Spectrum.

  Perfect competition to monopoly — and the regulatory machine in between.
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