Types of Profit
Accounting/Economic Profit
Economic Profit/ Profit Maximization
Profit Maximization
examples
100

Two Types of Profit

Profits provides the incentive for firms to innovate, cut costs and generally engage in behavior that uses society's resources efficiently. 

100

Accounting Profit Formulas

Total Revenue= Price x Quantity

Total Cost=Fixed Costs + Variable Costs

Accounting Profit = Total Revenue - Explicit Costs 

100

TR - Explicit and Implicit Costs = Profit

$120,000-$90,000-$30,000= $0

Economic Profit

100

Calculating Marginal Revenue and Costs

marginal revenue= change in total revenue/ change in quantity

marginal cost = change in total cost/change in quantity

100

Assume a competitive firm is producing where its price(P) and marginal revenue (MR) are greater than its marginal cost. What can be said regarding the firm's short-run output level?

The firm is producing too little and should increase its output level until P=MR=MC

200

Explicit Costs

"out of pocket expenses"

money spent on materials, utilities, labor, rent, capital, etc. 

200

Economic Profit Formulas 

Total Revenue= Price x Quantity

Total Cost= Explicit Costs + Implicit Costs

Economic Profit= Total Revenue - Explicit Costs and implicit costs

200

Normal Profit

business, expenses (land, labor and capital)

200

If TR>TC...

the firm earns an economic profit

200

Assume a competitive firm is experiencing the following costs at a quantity of 10 and for $8. What should the firm do to maximize profits?

MR=$8, MC=$4, TR=$80, TC=$60

The firm should produce more than a quantity of 10 to maximize its profit.

300

Implicit Costs

"Income Foregone"

The money value of one's opportunity cost

300

ex:) Carl's Tasty Barbecue - Accounting Profit

Price of meals x the quantity of meals sold = $120,000

Total Revenue

300

Profit Determination

that as long as total revenue is greater than Total Cost, firms are earning a profit. 

rational firms use Marginal Analysis, profit maximization, marginal analysis is cost-benefit analysis

300

If TR=TC...

the firm breaks even; earns a normal profit.

300

MR=MC, graphically speaking...

If MR>MC, the firm should produce more.

If MR=MC, the firm maximizes profit

If MR=MC, the firm should produce less. 

400

A car company faces explicit costs such as metal, copper, rubber, leather, computer software and auto works. Is an example of what?

Explicit Costs

400

ex:) Carl's Tasty Barbecue - Accounting Profit

Food, wood, spices, electricity, labor = $90,000

Total Explicit Costs 

400

Profit Maximization Rule

MR=MC

400

If TR<TC...

the firm earns an economic loss

400

At the quantity that the firm is selling, the firm has Marginal Cost of $200 while Marginal Revenue is $175.

The firm's profits would increase if the firm decreased the quantity sold.

500

Teacher opens a restaurant: The income they are giving up by becoming a restaurant owner. This is an example of what? 

Implicit Costs

500

ex:) Carl's Tasty Barbecue - Accounting Profit

TR - Explicit Costs = Profit 

$120,000 - $90,000 = $30,000

Accounting Profit

500

Profit Maximization 

In order to maximize profit, firms will continue to produce as long as the marginal revenue earned from an additional product is greater than or equal to the marginal cost of that additional product. 

500

MR=MC is the Profit Maximizing Rule

If MR>MC, then the firm should produce more output

If MR<MC, then the firm should produce less output. 

500

Firms Maximize profit at the quantity where MR=MC

As long as the MR curve or line is greater than the MC curve, firms should continue to produce more output. 

Firms should produce where the MR curve intersects the MC curve

If a firm is producing where the MC curve is greater than the MR curve, it should reduce its output