Google
Thursday 
January 23, 2025 

AmosWEB means Economics with a Touch of Whimsy!

AmosWEBWEB*pediaGLOSS*aramaECON*worldCLASS*portalQUIZ*tasticPED GuideXtra CrediteTutorA*PLS
MARKET DEMAND: The total demand of every individual willing and able to buy a good. Market demand is found by combining the individual demands of everyone willing and able to buy a particular good. The market demand curve is found by horizontally adding all individual demand curves, that is, sum up the quantities demanded by all buyers at each and every price. Market demand operates according to the law of demand, as illustrated by a downward-sloping market demand curve. For higher prices the quantity demanded by all buyers in the market combined is less than the quantity demanded for lower prices.

Visit the GLOSS*arama


MARGINAL COST AND LAW OF DIMINISHING MARGINAL RETURNS:

Decreasing then increasing marginal cost, reflected by a U-shaped marginal cost curve, is the result of increasing then decreasing marginal returns. In particular the decreasing marginal returns is caused by the law of diminishing marginal returns. As such, the law of diminishing marginal returns affects not only the short-run production of a firm but also the cost of short-run production. This translates into a positively-sloped supply curve for profit-maximizing competitive firms.
The marginal cost incurred by a firm in the short run are guided by the same principles that guide short-run production, especially the law of diminishing marginal returns. As the marginal product of the variable input decreases, due to the law of diminishing marginal returns, a firm must hire increasingly more of the variable input to get the same increase in output. This means that the incremental cost of producing an additional unit of output increases. In other words, decreasing marginal returns causes increasing marginal cost.

The marginal product and associated marginal cost of producing Wacky Willy Stuffed Amigos (those cute and cuddly armadillos and tarantulas) can illustrate this relation.

Stage I: Increasing Marginal Returns

In production Stage I, with increasing marginal returns, marginal cost declines. Because each additional worker is increasingly more productive, a given quantity of output can be produced with fewer variable inputs. Consider an extreme example.
  • Suppose that the first worker employed by The Wacky Willy Company has a marginal product of one Stuffed Amigo and is paid $5 an hour. In this case, the marginal cost of producing the first Stuffed Amigo is $5. One worker, working one hour, produces one Stuffed Amigo, and the cost is $5.

  • Now suppose, with increasing marginal returns, that the second worker has a marginal product of 2 Stuffed Amigos, but is paid $5 per hour like the first worker. In this case, the marginal cost of producing the second Stuffed Amigo is only $2.50. With a greater marginal product, the second worker needs to work only half-an-hour to produce one Stuffed Amigo, at a marginal cost of $2.50. One worker, working half-an-hour, produces one Stuffed Amigo, and the cost is $2.50.
The bottom line: With an increasing marginal product, marginal cost decreases.

Stage II: Decreasing Marginal Returns

In production Stage II, with decreasing marginal returns, marginal cost increases. Because each additional worker is less productive, a given quantity of output needs more variable inputs. Consider what happens as The Wacky Willy Company produces enough to succumb to the law of diminishing marginal returns.
  • Suppose that the 101st worker employed by The Wacky Willy Company has a marginal product of 10 Stuffed Amigos and again is paid $5 an hour. In this case, the marginal cost of producing the one Stuffed Amigo is $0.50. One worker, working one-tenth of an hour, produces one Stuffed Amigo, and the cost is $0.50.

  • Now suppose, with decreasing marginal returns, that the 102nd worker has a marginal product of 5 Stuffed Amigos, but is also paid $5 per hour like the other workers. In this case, the marginal cost of producing the one Stuffed Amigo is only $1. With a declining marginal product, the 102nd worker needs to work one-fifth of an hour to produce one Stuffed Amigo, at a marginal cost of $1.
The bottom line in this case: With a decreasing marginal product, marginal cost increases. The prime conclusion is that the positively-sloped portion of the marginal cost curve is directly attributable to the law of diminishing marginal returns.

<= MARGINAL COSTMARGINAL COST AND MARGINAL PRODUCT =>


Recommended Citation:

MARGINAL COST AND LAW OF DIMINISHING MARGINAL RETURNS, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: January 23, 2025].


Check Out These Related Terms...

     | marginal cost and marginal product | total cost and marginal cost | total cost curves | U-shaped cost curves | total variable cost and total product |


Or For A Little Background...

     | marginal cost | marginal cost curve | law of supply | short-run production analysis | law of diminishing marginal returns | marginal returns | marginal analysis | marginal product |


And For Further Study...

     | total cost | total variable cost | total fixed cost | average cost | variable cost | fixed cost | average total cost | average variable cost | average fixed cost | profit maximization | long-run marginal cost | opportunity cost, production possibilities |


Search Again?

Back to the WEB*pedia


APLS

BLUE PLACIDOLA
[What's This?]

Today, you are likely to spend a great deal of time flipping through mail order catalogs trying to buy either a lighted magnifying glass or a small, foam rubber football. Be on the lookout for small children selling products door-to-door.
Your Complete Scope

This isn't me! What am I?

Three-forths of the gold mined each year is used to manufacture jewelry.
"Lead the life that will make you kindly and friendly to everyone about you, and you will be surprised what a happy life you will lead."

-- Charles M. Schwab

AACCLA
Association of American Chambers of Commerce in Latin America
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