ECON 50 Chapter Notes - Chapter 21: Longrun, Substitute Good, Production Function

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6 Apr 2017

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Study behavior of profit maximizing firms in competitive, noncompetitive markets. How minimize costs of producing any given level of output. How to choose most profitable level of output. Suppose 2 factors of production, prices w1 and w2, want to figure out cheapest way to produce given level of output y. Let x1 and x2 measure amounts used of two factors, f(x1, x2) production function of firm. Write problem as min w1x1+w2x2, such that f(x1, x2)=y. Solution: minimum costs necessary to achieve desired output, function c(w1, w2, y) Called cost function measure minimal costs of producing y units of output when factor prices (w1, w2) Depict costs and technological constraints facing firm on same diagram, isoquants give technological constraints, all combinations of x1 and x2 to produce y. Suppoe want to plot all the combinations of inputs that have some given level of cost c, w1x2+w2x2=c. Straight line with slope of -w1/w2 and vertical intercept c/w2.

Related Questions

Earl sells lemonade in a competitive market on a busy street corner in Philadelphia. His production function is f(x1, x2) = x 1/3 1 x 1/3 2, where output is measured in gallons, x1 is the number of pounds of lemons he uses, and x2 is the number of labor-hours spent squeezing them.

1. Does Earl have constant returns to scale, decreasing returns to scale, or increasing returns to scale?

2. If he is going to produce y units in the cheapest way possible, what is the number of pounds of lemons he will use? How many hours of labor he will use?

3. What is the cost of producing y units at factor prices w1 and w2?

jadeswan51

Consider a profit-maximizing firm with the following production function: f(ï¨x1,x2) = ½x1x2.

The prices of the two inputs are equal to w1= 4 and w2= ½ 2, respectively

.a) What are the returns-to-scale properties of the firmâs production technology. Prove your answer.

.b) What input combination should the firm use to produce Q units of output?

.c) What is the firm's total cost of production as a function of the amount of output, Q?

.d) What is its marginal and average cost of production?

.e) Suppose the price of the first input falls to $2. What input combination should the firm use

now to produce Q units of output? What is its total, marginal, and average cost of production?

lemoncricket14

The opportunity cost of one more slice of pizza in terms of sodas is the

		the total number of pizza slices that we have divided by the total number of sodas that we have.
		the number of sodas we have to give up to get one extra pizza slice.
		the number of pizza slices we have to give up to get one extra soda.
		the total number of sodas that we have divided by the total number of pizza slices that we have.

1 point

QUESTION 2

A production possibilities frontier shows

		how money can be allocated among two kinds of goods.
		the limits to the future growth of a nation.
		the various combinations of output a nation can produce at a certain time, given its available resources and technology.
		that if the price of one good decreases, the price of the other has to increase.

1 point

QUESTION 3

When a production possibilities frontier is bowed outward, as more of one good is produced, its opportunity cost

		remains constant.
		might increase, decrease, or remain constant depending on how much people value the additional units of the good.
		increases.
		decreases.

1 point

QUESTION 4

When all of the available factors of production are being efficiently employed, the

		the economy is producing at a point within its PPF.
		PPF disappears.
		the economy is producing at a point beyond its PPF.
		the economy is producing at a point on its PPF.

1 point

QUESTION 5

If a nation devotes a larger share of its current production to consumer goods, then

		its PPF will shift inward.
		its economic growth will slow down.
		its PPF will shift outward.
		some productive factors will become unemployed.

1 point

QUESTION 6

A point on the production possibilities frontier reflects an

		the attainable point with full employment of all resources.
		attainable point without full employment of all resources.
		unattainable point without full employment of all resources.
		the unattainable point with full employment of all resources.

1 point

QUESTION 7

When drawing a production possibilities frontier, which of the following is held constant?

		the available factors of production and the state of technology
		the amount of money in the economy
		the prices of goods and services
		the quantity of the goods and services that are produced

1 point

QUESTION 8

As we move along the production possibilities frontier,

		more of both goods can be produced.
		the possibilities of tradeoffs diminish.
		a tradeoff is not possible because nations need all goods.
		the production of one good increases as the production of the other good decreases.

1 point

QUESTION 9

Which of the following is an assumption used when drawing a production possibilities frontier?

i.Human wants and desires are limited to what is available.

ii. Only two goods are considered.

iii. The level of technology is fixed and unchanging.

		I and iii
		ii only
		I, ii, and iii
		I only

1 point

QUESTION 10

To achieve gains from trade, a country

		needs to have an absolute advantage in the production of all goods.
		specializes in producing a good in which it has a lower opportunity cost.
		must produce at a point beyond its PPF.
		should produce at the midpoint of its PPF.

1 point

QUESTION 11

Relative to Al, Joe has ________ if Joe can produce a good at a lower opportunity cost than Al.

		a comparative advantage
		more production efficiency
		a marginal benefit
		a comparative benefit

1 point

QUESTION 12

Does economic growth depend upon which of the following?

i.Improving the quality of labor

ii. Technological advancement

iii. Increasing the amount of capital

		iii only
		ii only
		I only
		I, ii, and iii

1 point

QUESTION 13

In one hour John can produce 20 loaves of bread or 18 cakes. In one hour Phyllis can produce 30 loaves of bread or 15 cakes. Which of the following statements is true?

		John has a comparative advantage in producing cakes.
		Phyllis has an absolute advantage in both goods.
		Phyllis has a comparative advantage in producing cakes.
		John has an absolute advantage in both goods.

1 point

QUESTION 14

As an economy produces more of one of the goods on a bowed out production possibilities frontier, what happens to the opportunity cost of producing the good?

		It decreases.
		It might increase, decrease, or remain constant depending on how much people value the additional units of the good.
		It remains constant.
		It increases.

1 point

QUESTION 15

The production possibilities frontier illustrates the

		goods and services that people want.
		maximum combinations of goods and services that can be produced.
		resources the economy possesses, but not it is the level of technology.
		limits to people's wants.

1 point

QUESTION 16

The United States produced approximately ________ worth of goods and services in 2007.

		$14 billion
		$14 trillion
		$140 billion
		$140 trillion

1 point

QUESTION 17

The fact of increasing opportunity cost when moving on the PPF means that

		to increase the production of one product requires smaller and smaller sacrifices of the other good.
		to decrease the production of one product requires smaller and smaller sacrifices of the other good.
		to increase the production of one product requires larger and larger sacrifices of the other good.
		when the government forces a movement from one point on the PPF to another point, no production is lost.

1 point

QUESTION 18

Other things equal, if India devotes more resources to educate its population than China,

		China will grow faster than India.
		India will be able to eliminate scarcity faster than China.
		India will be able to eliminate opportunity cost faster than China.
		India will grow faster than China.

1 point

QUESTION 19

For Ireland to grow more potatoes, wool production must decrease. This situation is an example of

		zero opportunity cost.
		producing at a point that lies beyond the PPF.
		opportunity benefit.
		a tradeoff.

1 point

QUESTION 20

Moving from one point to another on a production possibilities frontier implies

		increasing the production of both goods.
		increasing the production of one good and decreasing the production of another.
		holding the production levels of both goods constant.
		decreasing the production of both goods.

1 point

QUESTION 21

The United States is one of the richest nations in the world,

		but it can still benefit from specialization and trade.
		so does not need to trade with poor nations to achieve any gains from trade.
		so might not have a comparative advantage in producing any goods.
		so it must have a comparative advantage in the production of all goods.

1 point

QUESTION 22

"Comparative advantage" is defined as a situation in which one person can produce

		more of all goods than another person.
		a good for a lower opportunity cost than another person.
		a good for a lower dollar cost than another person.
		more of a good than another person.

1 point

QUESTION 23

The idea of increasing opportunity cost is reflected in the

		the linear shape of the production possibilities frontier.
		bowed in the shape of the production possibilities frontier.
		bowed out the shape of the production possibilities frontier.
		the positive slope of the production possibilities frontier.

1 point

QUESTION 24

Suppose that after specializing according to comparative advantage, a country is trading with another nation that also specializes according to its comparative advantage. Which of the following statements are true for the first country?

i)It enjoys gains from trade.

ii)It must have an absolute advantage in the production of the good it produces.

iii)It is producing at a point beyond its PPF.

		I only.
		I and ii.
		I and iii.
		ii and iii.

1 point

QUESTION 25

If society moves from a period of time with significant unemployment to a time with full employment, its production possibilities frontier will

		shift rightward.
		not shift because the society moves from one point on the frontier to a point inside the frontier.
		not shift because the society moves from a point inside the frontier to a point on the frontier.
		shift leftward.

1 point

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ECON 50 Chapter Notes - Chapter 21: Longrun, Substitute Good, Production Function

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