Google
Saturday 
January 10, 2026 

AmosWEB means Economics with a Touch of Whimsy!

AmosWEBWEB*pediaGLOSS*aramaECON*worldCLASS*portalQUIZ*tasticPED GuideXtra CrediteTutorA*PLS
HERFINDAHL-HIRSHMAN 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.

Visit the GLOSS*arama

Most Viewed (Number) Visit the WEB*pedia

ASSUMPTION

An initial condition or statement of a model or theory that sets the stage for an analysis by abstracting from the real world. Assumptions are important to economic analysis. Some assumptions are used to simplify a complex analysis into more easily manageable parts. Other assumptions are used as control conditions that are subsequently changed to evaluate the consequences.

Complete Entry | Visit the WEB*pedia


APLS

PINK FADFLY
[What's This?]

Today, you are likely to spend a great deal of time looking for a downtown retail store seeking to buy either a birthday gift for your mother or a weathervane with a horse on top. Be on the lookout for deranged pelicans.
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.
"Few things help an individual more than to place responsibility upon them and to let them know that you trust them."

-- Booker T. Washington

JRE
Journal of Regulatory 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 ©2000-2026 AmosWEB*LLC
Send comments or questions to: WebMaster