<p>It says "for small values of delta p and delta q". So something small times something small is something very small. Basically we are taking a limit and as delta p and delta q go towards zero, the product goes to zero faster.</p>

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2017-12-07T23:54:38.030Z
The thing is, we have used this in examples regarding not only marginal, but greater changes, so that's what makes me confused.
faljipx
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2017-12-07T23:20:20.503Z
2017-12-07T23:29:22.780Z
2017-12-07T23:29:22.780Z
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<p>I am curious why the area $\Delta p \Delta q$ is so small that it can safely be neglected.</p>

<microeconomics>
Why is $\Delta p \Delta q$ in this diagram infinitely small?
faljipx
# Why is $\Delta p \Delta q$ in this diagram infinitely small?

(Asked by: username_0 on 2017-12-07)

[![enter image description here](https://i.sstatic.net/Ms8ZU.png)](https://i.sstatic.net/Ms8ZU.png)[![enter image description here](https://i.sstatic.net/2h2nH.png)](https://i.sstatic.net/2h2nH.png)

I am curious why the area $\Delta p \Delta q$ is so small that it can safely be neglected.

**Tags:** microeconomics


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## 1 answers

### Answer by username_1 on 2017-12-07. Score: 1

It says "for small values of delta p and delta q". So something small times something small is something very small. Basically we are taking a limit and as delta p and delta q go towards zero, the product goes to zero faster.

> **Comments:**
> **username_0**: The thing is, we have used this in examples regarding not only marginal, but greater changes, so that's what makes me confused.  

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