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Cross-price elasticity of demand = % change in Qd of good A % change in price of good B

Substitute goods have positive cross-price elasticities of demand: if good A is a substitute for good B, like coffee and tea, then a higher price for B will mean a greater quantity consumed of A. Complement goods have negative cross-price elasticities: if good A is a complement for good B, like coffee and sugar, then a higher price for B will mean a lower quantity consumed of A.

Elasticity in labor and financial capital markets

The concept of elasticity applies to any market, not just markets for goods and services. In the labor market, for example, the wage elasticity of labor supply    —that is, the percentage change in hours worked divided by the percentage change in wages—will determine the shape of the labor supply curve. Specifically:

Elasticity of labor supply = % change in quantity of labor supplied % change in wage

The wage elasticity of labor supply for teenage workers is generally thought to be fairly elastic: that is, a certain percentage change in wages will lead to a larger percentage change in the quantity of hours worked. Conversely, the wage elasticity of labor supply for adult workers in their thirties and forties is thought to be fairly inelastic. When wages move up or down by a certain percentage amount, the quantity of hours that adults in their prime earning years are willing to supply changes but by a lesser percentage amount.

In markets for financial capital, the elasticity of savings    —that is, the percentage change in the quantity of savings divided by the percentage change in interest rates—will describe the shape of the supply curve for financial capital. That is:

Elasticity of savings = % change in quantity of financial savings % change in interest rate

Sometimes laws are proposed that seek to increase the quantity of savings by offering tax breaks so that the return on savings is higher. Such a policy will increase the quantity if the supply curve for financial capital is elastic, because then a given percentage increase in the return to savings will cause a higher percentage increase in the quantity of savings. However, if the supply curve for financial capital is highly inelastic, then a percentage increase in the return to savings will cause only a small increase in the quantity of savings. The evidence on the supply curve of financial capital is controversial but, at least in the short run, the elasticity of savings with respect to the interest rate appears fairly inelastic.

Expanding the concept of elasticity

The elasticity concept does not even need to relate to a typical supply or demand curve at all. For example, imagine that you are studying whether the Internal Revenue Service should spend more money on auditing tax returns. The question can be framed in terms of the elasticity of tax collections with respect to spending on tax enforcement; that is, what is the percentage change in tax collections derived from a percentage change in spending on tax enforcement?

Questions & Answers

explain scarcity
Richard Reply
scarcity occurs when there are not enough resources to satisfy human's needs and wants therefore we need to allocate our resources using the price mechanism.
scarcity is when there is inadequate resources to catch the unlimited wants which would compel individual to make choice.
joint or complementary demand
Ryt Reply
what is demand
Qudus Reply
it maybe define as the amount or quantity of goods and services which a consumer is willing to buy with the ability to pay at a given price at a particular time
yesoo thanks dear
why is economics a science
Isaac Reply
Because science is all about thinking by making models whether a computational or Mathematical. Economics is a social sciences because it effects society but to understand Economics we use maths so it is a Science
I hope.......Economic is social science because it makes new new currency of money,it is decided the country’s depend system and the system be repeated others benefits in our ...
so what is the disadvantages of mix economic system
Economics is regarded as a social science because it uses scientific methods to build theories that can help explain the behaviour of individuals, groups and organisations.
The question is: why is Economic a "science" and not why is economics a "social science?" Alright folks?
In my own understanding of why economics is a science it bcz it deals mainly on human resources just like biology that deals in the human body why economics is science it also deals on the management of human resources all over the world bcz without economics there will be no human resources
what is technology
my response to the earlier question is, economics is a science but not a pure science like biology, chemistry and physics. The reason is that those pure science study inanimate object while economics study human being, their experiment are predictable.
Economics is a social science subject that shows the relationship between ends and scarce means with their alternative uses
what is Equilibrium?
Fatima Reply
it means equal price and equal quality
thank u Arthur!
Equilibrium is a state of balance in an economy. In as far as market forces are reasonably concerned, equilibrium means the state at which the quantity of goods supplied is equal to the quantity of goods demanded.
what is labour
labor can be define as a both physical and mental effort of man put forward towards production
name the types of demand and explain any two
Joint demand Composite demand Competitive demand
Labourcan be defined as man mental and physical exertion
what is elasticity
Motseoa Reply
difference between demand and supply
Adeyemi Reply
Demand- It is the desire of a buyer and his ability to pay for a particular commodity at a specific price. Supply- It is quantity of a commodity which is made available by the producers to its consumers at certain price.
yes OK thank you dear
Demand can be defined as the ability a buyer is willing and able to pay at a specific price and in agiven period of time Supply can be defined as the ability the producer is willing to supply with a specific price
what is labor force
restriction on international trade
Ayim Reply
formula for price elasticity of demand
Lognyuu Reply
what is average cost advantage and absolute cost advantage
Tamo Reply
what is demand
Home Reply
demand can be defined as the quantity of a commodity which people are willing to buy at particular times and at a given price .
you are talking about campaney in my self ihave campaney why don't you calculated my business
Adow Reply
formula for price elasticity of demand
Emilia Reply
Suppose that a soft drink company calculates that the demand for a bottle of its soda increases from 100 to 110 after the price is cut from $2 to $1.50.
The price elasticity of demand is calculated as the percentage change in quantity demanded (110 - 100 / 100 = 10%) divided by a percentage change in price ($2 - $1.50 / $2).
what does unit price mean
Lognyuu Reply
unit price is the price for a single unit of measure of a product sold in more or less than the single unit.
How do we find unit price?
divide total cost by total units
I don't understand the unit Price
which one how find or what
sorry how to find it or what
please how do we find the unit price
unit price or cost is the price per item when you purchase in a bulk
example assuming you bought a pack of matches is 1gh but the pack contains 10 boxes so the price per the box is called the unit price ie divide 1gh by the number of matches boxes in the pack to get unit price/cost. NB unit here means one so price per 1
you will divide total cost by total unit
yes please
yes, in the matches scenario it's 1gh/10boxes which is equal to 0.10ps so the unit price of the one box of the matches is ten Ghana pesewas
Thank you I now understand
Given that the price of a product has rose, the demand of the the product will decrease. Thus leads to a downward-sloping demand curve
M_geshnee Reply
The demand of consumers
No demand curves have différent shapes. For examole guven that price of a product increase, the demand of that product will decrease thus It will lead to a downward sloping curve conversely there can be also a rightward shift in the demand curve when price a the good decrease demand will increase

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Source:  OpenStax, Principles of economics. OpenStax CNX. Sep 19, 2014 Download for free at http://legacy.cnx.org/content/col11613/1.11
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