
BANK RUN: A situation in which a relatively large number of a bank's customers attempt to withdraw their deposits in a relatively short period of time, usually within a day or two. While common throughout the 1800s and early 1900s, government deposit insurance has largely eliminated banks runs in the modern economy. Historically a bank run was prompted by fears that the bank was on the verge of collapse, causing deposits to become worthless. Ironically a bank run often caused the bank to fail. Bank runs were often infectious, leading to economywide bank panics and businesscycle contractions.
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:The symbol that looks like a backward six (∂) is the mathematical notation for a derivative, or infinitesimally small change. The first term on the righthand 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 righthand 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.
Recommended Citation:POINT ELASTICITY, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 20002018. [Accessed: January 16, 2018]. Check Out These Related Terms...       Or For A Little Background...       And For Further Study...      
Search Again?
Back to the WEB*pedia



GREEN LOGIGUIN [What's This?]
Today, you are likely to spend a great deal of time browsing through a long list of dot com websites trying to buy either a key chain with a builtin flashlight and panic button or a green and yellow striped sweater vest. Be on the lookout for deranged pelicans. Your Complete Scope
This isn't me! What am I?


The first paper notes printed in the United States were in denominations of 1 cent, 5 cents, 25 cents, and 50 cents.


"Good humor is a tonic for mind and body. It is the best antidote for anxiety and depression. It is a business asset. It attracts and keeps friends. It lightens human burdens. It is the direct route to serenity and contentment."  Grenville Kleiser, Author


BAE Bureau of Agricultural Economics


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

