Google
Tuesday 
July 1, 2025 

AmosWEB means Economics with a Touch of Whimsy!

AmosWEBWEB*pediaGLOSS*aramaECON*worldCLASS*portalQUIZ*tasticPED GuideXtra CrediteTutorA*PLS
MARKET: The organized exchange of commodities (goods, services, or resources) between buyers and sellers within a specific geographic area and during a given period of time. Markets are the exchange between buyers who want a good--the demand-side of the market--and the sellers who have it--the supply--side of the market. In essence, a buyer gives up money and gets a good, while a seller gives up a good and gets money. From a marketing context, in order to be a market the following conditions must exist. The target consumers must have the ability to purchase the goods or services. They must have a need or desire to purchase. The target group must be willing to exchange something of value for the product. Finally, they must have the authority to make the purchase. If all these variables are present, a market exits.

Visit the GLOSS*arama

Most Viewed (Number) Visit the WEB*pedia

HERFINDAHL INDEX: A measure of concentration of the production in an industry that's calculated as the sum of the squares of market shares for each firm. This is an alternative method of summarizing the degree to which an industry is oligopolistic and the relative concentration of market power held by the largest firms in the industry. The Herfindahl index gives a better indication of the relative market control of the largest firms than can be found with the four-firm and eight-firm concentration ratios.

     See also | market share | oligopoly | concentration ratio | market control | antitrust laws |


Recommended Citation:

HERFINDAHL INDEX, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: July 1, 2025].


AmosWEB Encyclonomic WEB*pedia:

Additional information on this term can be found at:

WEB*pedia: Herfindahl index

Search Again?

Back to the GLOSS*arama

MARGINAL COST

The change in total cost (or total variable cost) resulting from a change in the quantity of output produced by a firm in the short run. Marginal cost (MC) indicates how much total cost changes for a given change in the quantity of output. Because changes in total cost are matched by changes in total variable cost in the short run (total fixed cost is fixed), marginal cost is the change in either total cost or total variable cost. It is found by dividing the change in total cost (or total variable cost) by the change in output. Marginal cost is one of four cost concepts used in short-run production analysis. The other three are average total cost, average fixed cost, and average variable cost.

Complete Entry | Visit the WEB*pedia


APLS

GRAY SKITTERY
[What's This?]

Today, you are likely to spend a great deal of time at a flea market hoping to buy either an ink cartridge for your printer or a rechargeable battery for your camera. Be on the lookout for the happiest person in the room.
Your Complete Scope

This isn't me! What am I?

Helping spur the U.S. industrial revolution, Thomas Edison patented nearly 1300 inventions, 300 of which came out of his Menlo Park "invention factory" during a four-year period.
"Experience keeps a dear school, but fools will learn in no other. "

-- Benjamin Franklin

FDI
Foreign Direct Investment
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 ©2000-2025 AmosWEB*LLC
Send comments or questions to: WebMaster