Google
Tuesday 
September 1, 2015 

AmosWEB means Economics with a Touch of Whimsy!

AmosWEBWEB*pediaGLOSS*aramaECON*worldCLASS*portalQUIZ*tasticPED GuideXtra CrediteTutorA*PLS
Today's Index
Yesterday's Index
233.3

Help us compile the AmosWEB Free Lunch Index. Tell us about your last lunch.

Skipped lunch altogether.
Bought by another.
Ate lunch at home.
Brought lunch from home.
Fast food drive through.
Fast food dine in.
All-you-can eat buffet.
Casual dining with tip.
Fancy upscale with tip.

More About the Index
Best TV Drama of the 1970s?

Charlie's Angels.
The Six Million Dollar Man.
The Waltons.
Wonder Woman.
Starsky & Hutch.
Little House on the Prairie.

SERVICES, CONSUMPTION: Personal consumption expenditures on activities that provide direct satisfaction of wants and needs without the production of tangible goods. Common examples are information, entertainment, and education. This is one of three categories of personal consumption expenditures in the National Income and Product Accounts maintained by the Bureau of Economic Analysis. The other two are durable goods (see durable goods, consumption) and nondurable goods (see nondurable goods, consumption). Services are about 60% of personal consumption expenditures and 40% of gross domestic product.

Visit the GLOSS*arama


DEMAND CURVE:

A graphical representation of the relation between the demand price and quantity demanded, holding all ceteris paribus demand determinants constant. A demand curve graphically illustrates the law of demand, the inverse relation between demand price and quantity demanded for a particular good. It is one half of the standard market model; a supply curve is the other half.
A demand curve is a useful graph that can summarize several of the more important aspects of demand. It graphically illustrates the law of demand and when combined with the supply curve forms the market model, one of the most useful tools found in economic analysis.

Plotting the Numbers

A demand curve is commonly derived from a simple demand schedule, such as the one for stuffed Yellow Tarantulas, a cute and cuddly stuffed creature from the Wacky Willy Stuffed Amigos line of collectibles, shown in the left half of the exhibit below. This schedule illustrates the law of demand relation between demand price and quantity demanded. As the demand price increases from $5 to $50, the quantity demanded decreases from 90 to 0 Yellow Tarantulas.
Demand ScheduleDemand Curve

Transferring the price-quantity pairs from the demand schedule to a graph reveals the demand curve for stuffed Yellow Tarantulas. This task is easily accomplished by clicking the [Plot] button. A $5 price is associated with 90 stuffed animals; a $10 price goes with 80 stuffed animals; and on it proceeds, until finally a $50 price is paired with 0 stuffed animals.

The demand curve is finalized by connecting these 10 points with a continuous line. The 10 prices corresponding to these 10 points, are but 10 of an infinite number of prices, each with a corresponding quantity. A continuous line includes these other possibilities. To reveal this line, click the [Draw] button. The end result is the demand curve.

What It All Means

A Demand Curve
Yellow Tarantulas
A Demand Curve
Here are a few observations about this demand curve.
  • First, as the price increases from a low of $5 to a high of $50, the quantity demanded of Yellow Tarantulas decreases from 90 to 0. Higher prices are related to smaller quantities. This relation, this inverse relation between demand price and quantity demanded, IS the basic law of demand.

  • Second, the demand curve represents maximum values. That is, if the price is $40, then the maximum quantity demanded is 20 Yellow Tarantulas. It is not 50, nor even 21, but only 20. Alternatively, if buyers buy 20 Yellow Tarantulas, then the maximum demand price they are willing and able to pay is $40, not $50, not even $40.01, but $40.

  • Third, this whole curve, every price-quantity combination on the curve, is demand. Demand is the entire range of prices and quantities, all pairs. Demand is the entire curve. In contrast, quantity demanded is any specific number of Yellow Tarantulas buyers are willing and able to buy at a specific demand price. Selecting a different price generates a different quantity demanded. Quantity demanded is a point on the curve.

  • Fourth, this demand curve represents hypothetical possibilities. It suggests a "What if" relation between demand price and quantity demanded. It indicates quantity demanded given a demand price, or demand price given the quantity demanded. If, for example, the demand price is $10, then buyers are willing and able to buy 100 Yellow Tarantulas. This does not mean that buyers will buy, are buying, or ever will buy 100 Yellow Tarantulas. It only indicates what they would buy at a $10 price.

<= DEMAND AND SUPPLY INCREASEDEMAND DECREASE =>


Recommended Citation:

DEMAND CURVE, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2015. [Accessed: September 1, 2015].


Check Out These Related Terms...

     | demand price | quantity demanded | law of demand | demand space | consumer surplus | demand determinants | change in demand | change in quantity demanded | supply curve |


Or For A Little Background...

     | demand | demand schedule | market | quantity | price | unlimited wants and needs | economic analysis | exchange | scarcity | good | service | satisfaction |


And For Further Study...

     | market demand | competition | value | consumer sovereignty | competitive market | efficiency | income effect | substitution effect | elasticity | price elasticity of demand | elasticity and demand slope | aggregate demand curve |


Search Again?

Back to the WEB*pedia


APLS

State of the ECONOMY

e-commerce sales
2nd Quarter 2015
$83.9 billion
Up 4.2% from 1st Quarter 2015 US Census Bureau

More Stats

RED AGGRESSERINE
[What's This?]

Today, you are likely to spend a great deal of time wandering around the shopping mall hoping to buy either a large red and white striped beach towel or a bottle of blackcherry flavored spring water. Be on the lookout for poorly written technical manuals.
Your Complete Scope

This isn't me! What am I?

Francis Bacon (1561-1626), a champion of the scientific method, died when he caught a severe cold while attempting to preserve a chicken by filling it with snow.
"Success is the child of audacity. "

-- Benjamin Disraeli, British statesman

QJE
Quarterly Journal of Economics
A PEDestrian's Guide
Xtra Credit
Tell us what you think about AmosWEB. Like what you see? Have suggestions for improvements? Let us know. Click the User Feedback link.

User Feedback



| AmosWEB | WEB*pedia | GLOSS*arama | ECON*world | CLASS*portal | QUIZ*tastic | PED Guide | Xtra Credit | eTutor | A*PLS |
| About Us | Terms of Use | Privacy Statement |

Thanks for visiting AmosWEB
Copyright ©2000-2015 AmosWEB*LLC
Send comments or questions to: WebMaster