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Supply and demand: an example video that cites its source

A 32-second whiteboard lesson the Zıpır pipeline made from the Wikipedia article “Supply and demand”. Every sentence on screen is tied to its sentence in the source.

The video plays by itself, muted; the player's speaker button turns the narration on in one click. Length 0:32. The captions are burned into the picture; the text is below.

The text of the video

  1. “The concept of supply and demand forms the theoretical basis of modern economics.”

    Wikipedia — “Supply and demand”, lead section, p. 1, paragraph 1

  2. “A rise in the cost of raw materials would decrease supply, shifting the supply curve to the left”

    Wikipedia — “Supply and demand”, lead section, p. 1, paragraph 7

  3. “According to the law of demand, the demand curve is always downward-sloping, meaning that as the price decreases, consumers will buy more of the good.”

    Wikipedia — “Supply and demand”, lead section, p. 2, paragraph 9

Source: Wikipedia — “Supply and demand”, lead section, license CC BY-SA 4.0 (Wikipedia contributors).

To see where each sentence stands in the source page, open the proof page. The earlier statute example, as text: Law 6331 article 17.

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