<p>A change in labor wage could bring about a simultaneous change in the market demand and supply curves. </p>

<p>Assume that wages increase: consumers now have more income and this in principle will affect the demand curve. On the other hand, the costs of the firms have increased, and this will affect the supply curve.</p>

<p>The same could be said in case space rents increase: it results in an increase in (asset) income for consumers/asset holders, and an increase in costs for firms renting the space.</p>

CC BY-SA 3.0
2017-09-03T20:51:28.390Z
2017-09-03T20:51:28.390Z
Alecos Papadopoulos
<p>No, this case is not true. </p>

<p>A factor which both shifts supply and demand curves at the same time is an <strong>increase or decrease in population</strong>.</p>

<p>This both adds consumers (increase in demand) to the economy and increases the workforce (increase in labor force, thus producing more and increasing quantity supplied).</p>

CC BY-SA 3.0
2017-09-03T18:27:39.063Z
2017-09-03T18:27:39.063Z
EconJohn
<p>In which situation does the demand and supply curve both shift? My professor told me for the demand curve,  the income of the consumers changes etc. will shifted the demand curve; For the supply curve, the changes technology etc will shift the supply curve.</p>

<p>So is this statement true: Only the types of situation with some factors causes the demand curve shift along with some other separate factors causes the supply curve shift may had both curve shift simultaneously, but in fact there is no single one factor that could shift both curve simultaneously.</p>

<microeconomics><supply-and-demand>
In which situation does the demand and supply curve both shift?
Victor
# In which situation does the demand and supply curve both shift?

(Asked by: username_0 on 2017-09-03)

In which situation does the demand and supply curve both shift? My professor told me for the demand curve, the income of the consumers changes etc. will shifted the demand curve; For the supply curve, the changes technology etc will shift the supply curve.

So is this statement true: Only the types of situation with some factors causes the demand curve shift along with some other separate factors causes the supply curve shift may had both curve shift simultaneously, but in fact there is no single one factor that could shift both curve simultaneously.

**Tags:** microeconomics, supply-and-demand


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## 2 answers

### Answer by username_2 on 2017-09-03. Score: 4 | Accepted answer

No, this case is not true.

A factor which both shifts supply and demand curves at the same time is an **increase or decrease in population**.

This both adds consumers (increase in demand) to the economy and increases the workforce (increase in labor force, thus producing more and increasing quantity supplied).


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### Answer by username_1 on 2017-09-03. Score: 3

A change in labor wage could bring about a simultaneous change in the market demand and supply curves.

Assume that wages increase: consumers now have more income and this in principle will affect the demand curve. On the other hand, the costs of the firms have increased, and this will affect the supply curve.

The same could be said in case space rents increase: it results in an increase in (asset) income for consumers/asset holders, and an increase in costs for firms renting the space.


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