Proof
Play the video. Every claim lights up its line in the source page.
The watch page of the same video, with its text: the Supply and demand example video.
- The concept of supply and demand forms the theoretical basis of modern economics.p. 1, paragraph 1
- A rise in the cost of raw materials would decrease supply, shifting the supply curve to the leftp. 1, paragraph 7
- 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.p. 2, paragraph 9
Source: Wikipedia — “Supply and demand”, lead section, license CC BY-SA 4.0. The page images come from the printed PDF (144 dpi) of the document Zıpır was given (the article's lead section, a pinned revision); the marked boxes are the sentences' own boxes inside the PDF. The video is the whiteboard lesson the product's own pipeline made from this document.
The 3 sentences of the video
So that it reads even when the player does not run: the sentences of the video, with the page and paragraph each was taken from, also stand here as plain text.
“The concept of supply and demand forms the theoretical basis of modern economics.”
Wikipedia — “Supply and demand”, lead section, CC BY-SA 4.0 · p. 1, paragraph 1
“A rise in the cost of raw materials would decrease supply, shifting the supply curve to the left”
Wikipedia — “Supply and demand”, lead section, CC BY-SA 4.0 · p. 1, paragraph 7
“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, CC BY-SA 4.0 · p. 2, paragraph 9
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Every sentence with its page and article number.
If a quote is not in the source, the scene is not produced.
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How the video is made is in the guide to source-cited video lessons; the procedure, manual and course-material counterparts are under solutions; prices are on the pricing page.
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