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About Business Basics
Business Basics are AI-generated explanations prepared with access to the complete collection, human-reviewed prior to publication. Short and simple, covering business fundamentals.
Topics Covered
- Law of Supply
- Upward-sloping supply curve
- Producer profit motivation
- Increasing production costs & steeper supply curve
- Non-price determinants of supply
- Industry & market supply examples
- Short-run vs. long-run supply
- Supply & demand equilibrium
Talk Citation
(2026, January 28). Law of supply [Video file]. In The Business & Management Collection, Henry Stewart Talks. Retrieved February 9, 2026, from https://doi.org/10.69645/YVYB7966.Export Citation (RIS)
Publication History
- Published on January 28, 2026
A selection of talks on Finance, Accounting & Economics
Transcript
Please wait while the transcript is being prepared...
0:00
Welcome, everyone. Today, we're
exploring the law of supply,
a central idea in economics
that affects everything from
everyday consumer goods to
complex markets like real
estate or technology.
At its essence,
the law of supply
describes how producers
respond to changing prices.
It states that all else equal,
as the price of a good
or service increases,
the quantity supplied by
businesses increases as well.
This forms the familiar
upward sloping supply curve
often seen in
economics lectures.
Firms are motivated by profit.
So when market prices rise,
producing becomes
more attractive,
encouraging suppliers
to allocate
more resources to production.
To understand why the supply
curve rises as prices rise,
let's look at what happens
inside a business.
Imagine a shirt manufacturer.
If the selling price of shirts
goes up while costs stay steady,
the potential profit
per shirt grows.
The firm will likely
ramp up production to
take advantage of the
increased profit margins.
Yet, as more output is produced,
costs can begin to climb.
Overtime may need to be paid or
less efficient workers and
materials may be brought in.
This explains why
the supply curve
is not just upward sloping,
but often gets steeper,
reflecting higher costs as
firms expand production.
In both the United Kingdom
and the United States,
these dynamics hold true
across many industries.
While price is the primary
driver along a supply curve,
other factors called
non price determinants