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total revenue
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amount a firm receives from the sale of the goods and services it produces
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total cost
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the amount a firm spends in order to produce goods and services
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profit =
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total revenue - total cost
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explicit cost
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tangible out-of-pocket expenses
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implicit costs
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the opportunity costs of doing business, what are the other things they could have done with money?
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total costs =
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explicit costs + implicit costs
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accounting profit=
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total revenue - explicit costs
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economic profit
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total revenues - (explicit costs + implicit costs)
accounting profit - implicit cost
This means economic profit is always less than accounting profit.
accounting profit - implicit cost
This means economic profit is always less than accounting profit.
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factors of production
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the inputs used in producing goods and services.
They include land, labor, and capital.
- land is geographic locations owned by company. Building is not land, capital. If it's not land or people, it's capital
They include land, labor, and capital.
- land is geographic locations owned by company. Building is not land, capital. If it's not land or people, it's capital
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production function
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describes the relationship between inputs a firm
uses and the output it creates.
- important in firm making
uses and the output it creates.
- important in firm making
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marginal product
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the change in output associated with one additional
unit of input (ceteris paribus).
-all inputs except labor are fixed
-apple adds one more worker, iPhone production increases from 1000-1050 iPhones a day. Marginal production = 50 iPhones a day
unit of input (ceteris paribus).
-all inputs except labor are fixed
-apple adds one more worker, iPhone production increases from 1000-1050 iPhones a day. Marginal production = 50 iPhones a day
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diminishing marginal product
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occurs when successive increases in
inputs are associated with a slower rise in output.
(where curve of production starts to get flatter)
inputs are associated with a slower rise in output.
(where curve of production starts to get flatter)
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variable costs
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costs that change with the rate of output
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fixed costs
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unavoidable costs which do not vary with output.
I In the long run, no costs are fixed
I In the long run, no costs are fixed
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marginal costs
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the change in total cost associated with a one unit
increase in output.
-avg total cost is always above avg variable cost
increase in output.
-avg total cost is always above avg variable cost
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Efficency scale
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the output level that minimizes the avg total cost
ATC=AVC+AFC
-in long run all costs are variable, gives firms more control over their costs, allowing them to reach desired level of output
ATC=AVC+AFC
-in long run all costs are variable, gives firms more control over their costs, allowing them to reach desired level of output
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Scale
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the size of the production process (3 types)
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3 types of production process
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1. economies of scale: occur when costs decline as output expands in the long run (buying in bulk)
2. dis economies of scale: occur when costs arise as output expands in the long run
3. constant returns to scale: occur when costs remain constant as output expands in the long run, per unit cost, avg cost stays the same
2. dis economies of scale: occur when costs arise as output expands in the long run
3. constant returns to scale: occur when costs remain constant as output expands in the long run, per unit cost, avg cost stays the same
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If all workers are able to specialize and become more productive as more labor is hired, the amount of total output produced
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increases at an increasing rate
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a market has reached an efficient outcome when
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total surplus is maximized
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if a firm hires another worker and her marginal product of labor is negative, we know that the firm's total output is
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decreasing
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social costs=
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internal costs+external costs
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a firm's economic profit is always less than its accounting profit because
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economic profit considers implicit costs, which accounting profit does not
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lauren is the owner of a bakery that earns 0 economic profit. Last year, her total revenue was $145,000, her rent was $12,000, her labor costs were $65,000, and her overhead expenses were $15,000. From this information, we know that her total implicit costs were:
answer
$53,000
145-12-65-15* implicit=0
53-implicit=0
53=implicit
145-12-65-15* implicit=0
53-implicit=0
53=implicit
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average fixed cost=
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AVC+AFC
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darrel owns a furniture store. His total costs are $225,000 per year, and his variable costs are $75,000 per year. This means that his fixed costs are
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$150,000
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lauren owns a bakery that produces, among other things, wedding cakes. She currently has 6 employees; with 6 employees, her baker can produce 9 wedding cakes per day. If she hired a seventh employee, she'd be able to produce 12 wedding cakes per day. Therefore, the marginal product of the seventh employee is ___ wedding cakes.
answer
3
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a firm's production function is similar to recipe used to make a cake in the sense that the production function shows us the combination of ____ used to produce ____
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inputs; outputs
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the average total cots of production is minimized at what level of output
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where MC and ATC intersect
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accounting profit is equal to
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total revenue minus explicit costs
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the out-of-pocket expenses incurred in producing a good are also known as
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explicit costs
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if a firms average total costs decrease as it increases its scale of production, the firm is experiencing:
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economies of scale
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a firms inputs are also known as its
answer
factors of production
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diseconomies
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ATC increases, as it increases its scale of production
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total revenue minus total cost is equal to
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profit
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which of the following can we learn by looking at a firm's short-run costs?
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the costs-minimizing level of output
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which of the following is most likely to exhibit free entry?
answer
restaurants
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the change in revenue associated with a one-unit increase in production is known as
answer
marginal revenue
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costs that have been incurred as a result of past decisions are known as
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sunk costs
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imagine Bob owns a burger restaurant, Bob's Burgers, which operates in a perfectly competitive market. In the short run, if Bob faces a marginal cost of $3.50 per burger and sells his burgers for $4.00 a piece, which of the following is true?
answer
Bob is not profit maximizing. If Bob increased production, he would also increase profits
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which of the following is not a characteristic of a perfectly competitive firm?
answer
all of the above are characteristics of competitive firm
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why can't a firm in a perfectly competitive market maintain positive economic profits in the long run ?
answer
if a firm is facing positive economic profits, competition will enter the market, decreasing price until economic profits are eliminated
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in which of the following short-run scenarios should a firm in a perfectly competitive market shut down?
answer
P<AVC
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which of the following is not true of the profit-maximizing rule?
answer
following the profit-maximizing rule always lead a firm in a perfectly competitive market to have positive economic profits