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October 31, 2024 

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JOB SATISFACTION: The satisfaction or utility that a worker receives from employment. Job satisfaction might result from the working environment (friendly co-workers, supportive boss) or from the type of work performed (playing sports, creating artwork, accomplishing goals). Satisfaction generated by a job is part of the "total compensation" an employee receives, meaning workers with more job satisfaction are often willing to accept a lower monetary wage payment.

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PROFIT CURVE:

A curve that graphically represents the relation between the economic profit earned by a firm and the quantity of output sold. This curve is constructed to capture the relation between profit and the level of output, holding other variables, especially those affecting the total revenue and total cost curves, constant. The profit curve is commonly used to illustrate the profit-maximizing quantity of output produced by a firm.
A profit curve can be derived directly form a table of profit and output quantity numbers. However, it is frequently obtained from a graph of the total revenue and total cost curves. The key feature of a profit curve is ease with which it illustrates the quantity of output that maximizes a firm's economic profit. The highest point on a profit curve is maximum profit.

The derivation of a profit curve can be illustrated using the short-run production activities of a hypothetical firm, such as Phil the zucchini grower. Because Phil operates in a market structure characterized by a large number of small firms producing identical products with perfect resource mobility and perfect knowledge, he represents a perfectly competitive firm. However, the basic process is the much same for firms operating in other market structures. The only difference is the shape of the total revenue curve.

Zucchini Profit Curve
Profit Curve

The derivation of Phil's profit curve can be graphically illustrated using the total revenue and total cost curves in this exhibit. The lower panel of the exhibit to the right is standing poised to display the profit curve for Phil's zucchini production.

  • Total Revenue: The straight green line labeled TR depicts the total revenue that Phil receives from zucchini production. The line is straight, with a constant slope, because the price is constant at $4.

  • Total Cost: The curvy red line labeled TC represents the total cost that Phil incurs in the production of zucchinis. The shape is based on increasing, then decreasing marginal returns.

  • Profit: The vertical difference between these two lines is economic profit. If the total revenue line is above the total cost line in the middle of the diagram, economic profit is positive. If the total revenue line is below the total cost line at the far right and far left, economic profit is negative. The profit curve can be displayed in the lower panel by clicking the button labeled [Profit Curve].
Three segments of this profit curve are worth noting.
  • First, profit is negative (that is, Phil incurs an economic loss) for small quantities of output where the profit curve lies below the horizontal axis. Phil does not want to produce zucchinis in this range.

  • Second, profit is positive for larger quantities of output where the profit curve rises above the horizontal axis. Phil does want to produce in this range.

  • Third, profit then becomes negative once again for the largest quantities of output where the profit curve dips below the horizontal axis again.
Once this profit curve has been derived, it can be used to identify the profit-maximizing level of production. The production level that attains the peak of the profit is probably evident by looking at the exhibit, but it can be highlighted by clicking the [Profit Max] button. The output quantity identified is 7 pounds of zucchinis.

Before leaving this graph, two other quantities can be highlighted. The profit curve intersects the horizontal axis (meaning profit is zero) at two quantities--about 3.5 pounds of zucchinis and just over 9 pounds of zucchinis. Click the [Breakeven] button to highlight these two output levels.

Both quantities are termed breakeven output. Breakeven output is a quantity of output in which the total revenue is equal to total cost such that a firm earns exactly a normal profit, and thus receives no economic profit nor incurs an economic loss. The reason for the term "breakeven" output is that the firm is just "breaking even." It is neither making a profit nor incurring a loss. Economic profit is zero. Breakeven output is usually most noteworthy as a reference point. The profit-maximizing production level invariably occurs between the two breakeven output levels.

<= PROFITPROFIT MAXIMIZATION =>


Recommended Citation:

PROFIT CURVE, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2024. [Accessed: October 31, 2024].


Check Out These Related Terms...

     | total cost curve | total revenue, perfect competition | perfect competition, profit analysis |


Or For A Little Background...

     | profit | profit maximization | economic profit | normal profit | total revenue | total cost | perfect competition | perfect competition, characteristics |


And For Further Study...

     | perfect competition, short-run production analysis | perfect competition, marginal analysis | perfect competition, total analysis | perfect competition, breakeven output | short-run production alternatives | perfect competition, profit maximization | perfect competition, loss minimization | perfect competition, efficiency | perfect competition, short-run supply curve |


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