Q.Explain any three exceptions to the Law of Supply.

A handful of real situations see quantity supplied fail to rise smoothly with price, or even move against it.

1. Perishable / market-period goods. For highly perishable produce sold within a single market day (fresh vegetables, fish), the seller's stock on hand is physically fixed — no more can be produced that same day whatever price is offered, so the supply curve for that short market period is effectively vertical (perfectly inelastic).

2. Distress sale. A seller under urgent financial pressure, or lacking storage, may be forced to sell a LARGER quantity even as the price is falling, simply to raise the cash needed to meet pressing obligations — the opposite of what the Law of Supply predicts. …

Confusing the market-period vertical supply curve (a genuinely fixed physical stock, temporary) with a permanently perfectly inelastic supply — the market-period case is specific to that short period only; over …