Google
Thursday 
June 21, 2018 

AmosWEB means Economics with a Touch of Whimsy!

AmosWEBWEB*pediaGLOSS*aramaECON*worldCLASS*portalQUIZ*tasticPED GuideXtra CrediteTutorA*PLS
BANK RESERVES: The "money" that banks use to conduct day-to-day business, including cashing checks, satisfying customers's withdrawals, and clearing checks between accounts at different banks. The "money" in question includes vault cash and Federal Reserve deposits. Specifically, vault cash is the paper money and coins that a bank keeps on the bank premises (both in the vault and in teller drawers), which is used to "cash" checks and otherwise provide the funds that customers withdraw. Federal Reserve deposits are accounts that banks keep with the Federal Reserve System, which are used to process, in a systematic, centralized fashion, the millions of checks written each day by customers of one bank that are deposited by customers of another bank. Using these deposits, the Fed acts as a central clearing house for checks, being able to simultaneously debit the account of one bank and credit the account of another. More on the importance of bank reserves can be found under fractional-reserve banking.

Visit the GLOSS*arama


POINT ELASTICITY:

The relative responsiveness of a change in one variable (call it B) to an infinitesimally small change in another variable (call it A). The notion of point elasticity typically comes into play when discussing the elasticity at a specific point on a curve.
Point elasticity can be calculated in a number of different ways. Sophisticated economists, using sophisticated mathematical techniques (better known as calculus) calculate point elasticity by using derivatives. Derivatives are calculus talk for infinitesimally small changes. The formula for calculating point elasticity using calculus is given as:

point
elasticity
=∂B
B
÷∂A
A
The symbol that looks like a backward six (∂) is the mathematical notation for a derivative, or infinitesimally small change. The first term on the right-hand side of this formula is the percentage change in variable B and the second term is the percentage change in variable A.

Unsophisticated folks can also calculate point elasticity without the use of sophisticated calculus. This is done with the midpoint elasticity formula, presented here:

midpoint
elasticity
=(B2 - B1)
(B2 + B1)/2
÷(A2 - A1)
(A2 + A1)/2
The first term on the right-hand side of the equation is the percentage change in variable B. The second term is the percentage change in variable A. The individual items are interpreted as this: A1 is the initial value of A before any changes, A2 is the ending value after A changes, B1 is the initial value of B before any changes, and B2 is the ending value after B changes.

This midpoint elasticity formula actually calculates the average or arc elasticity of the entire line segment. However, it also calculates the point elasticity for the midpoint of a line segment.

<= PLASTIC MONEYPOLICY LAGS =>


Recommended Citation:

POINT ELASTICITY, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2018. [Accessed: June 21, 2018].


Check Out These Related Terms...

     | arc elasticity | coefficient of elasticity | midpoint elasticity formula | endpoint elasticity formula | point elasticity |


Or For A Little Background...

     | elasticity | price elasticity of demand | price elasticity of supply | income elasticity of demand | cross elasticity of demand |


And For Further Study...

     | elasticity and demand slope | elasticity and supply intercept | demand elasticity and total expenditure | elasticity alternatives | elasticity determinants |


Search Again?

Back to the WEB*pedia


APLS

BLACK DISMALAPOD
[What's This?]

Today, you are likely to spend a great deal of time at a crowded estate auction trying to buy either semi-gloss photo paper that works with your neighbor's printer or a birthday gift for your father that doesn't look like every other birthday gift for your father. Be on the lookout for neighborhood pets, especially belligerent parrots.
Your Complete Scope

This isn't me! What am I?

In the late 1800s and early 1900s, almost 2 million children were employed as factory workers.
"Anyone who has never made a mistake has never tried anything new. "

-- Albert Einstein, physicist

CBA
Cost Benefit Analysis
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 ©2000-2018 AmosWEB*LLC
Send comments or questions to: WebMaster