<p>Engel curve assumes the price is constant, and demand curve assumes income constant. There is only demand function, no engel curve equation or demand equation.</p>

CC BY-SA 3.0
2016-02-14T21:54:38.327Z
2016-02-14T21:54:38.327Z
Kun
<p>I mean, an Ordinary Demand Equation measures changes in quantity of X due to changes in price Px.  Engel Curve measures changes in quantity of X due to changes in income M.  But ODE has M in it's equation, and is simply just an algebraic variant of the Engel curve!</p>

CC BY-SA 3.0
2016-02-14T02:43:59.227Z
Engel curve assumes the price is constant, and demand curve assumes income constant. There is only demand function, no engel curve equation or demand equation.
Kun
CC BY-SA 3.0
2016-02-14T21:54:00.440Z
You are very welcome
Kun
<microeconomics><consumer-theory><supply-and-demand>
What is the difference between an Ordinary Demand equation and an Engel curve equation?
bloopton
# What is the difference between an Ordinary Demand equation and an Engel curve equation?

(Asked by: username_0 on 2016-02-14)

I mean, an Ordinary Demand Equation measures changes in quantity of X due to changes in price Px. Engel Curve measures changes in quantity of X due to changes in income M. But ODE has M in it's equation, and is simply just an algebraic variant of the Engel curve!

**Tags:** microeconomics, consumer-theory, supply-and-demand
> **Comments:**
> **username_1**: Engel curve assumes the price is constant, and demand curve assumes income constant. There is only demand function, no engel curve equation or demand equation.  
> **username_1**: You are very welcome  

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## 1 answers

### Answer by username_1 on 2016-02-14. Score: 2 | Accepted answer

Engel curve assumes the price is constant, and demand curve assumes income constant. There is only demand function, no engel curve equation or demand equation.


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