ECON211 Lecture Notes - Lecture 5: Normal Good, Aggregate Demand, Root Mean Square

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16 Dec 2016

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Measured per unit time such as hours per week or per year. However, we will think of employment in terms of persons to simplify discussion. Downwards sloping curve: due to diminishing marginal product of labour (extra revenue from hiring additional units of labour (vmp=mrp) will be falling as labour input increases, ceteris paribus) Equilibrium: rm will hire workers up to the level where the money wage rate (w) is just equal to the value of the mppl. Assuming perfect competition in the product market, then the price of the product (p) will be constant (the rm is a price taker) and equal to marginal revenue as the rm employs more labour and produces more output. Cost: is the money wage and therefore constant. Value of marginal product of labour (vmpl): the extra revenue from each additional unit of labour employed, given by mppl x p, and equal in value to.

Related Questions

1. In a perfectly competitive industry, an individual firm faces:

a. a perfectly elastic labour supply curve

b. a perfectly inelastic labour supply curve

c.a perfectly vertical labour supply curve

d.none of the above

2. A firm purchases more capital equipment. We would expect to observe:

a. an increase in the supply of labour for this firm

b. a decrease in the supply curve of labour for this firm

c.an increase in the wage rate paid for labour by this firm

d.an increase in the demand for labour by this firm

3. Which of the following would be h most likely outcome if all perfectly competitive firms in a product market join together to form a monopoly?

a. the rate of output in the market will increase but the quantity of labour input will decrease

b.both the rate of output and the quantity of labour input employed will increase

c.the rate of output in the market will decrease but the quantity of labour input will increase

d.both the rate of output and the quantity of labour input employed will decrease

4. what does the marginal revenue product equal when 28 workers are hired in one week?

Labor input (workers per week)__Marginal physical product (output per week)__marginal revenue

25_______________________150_________________________________9.00

26_______________________140_________________________________8.50

27_______________________130_________________________________8.00

28_______________________120_________________________________7.50

29_______________________110________________________________7.00

a. $210

b.$7.50

c.$900

d.$1040

5. The profit-maximizing firm will hire additional workers until:

a. the extra revenue by the last workers hired equals zero

b.the extra cost associated with hiring the last worker equals the price of goods produced

c.the additional cost associated with hiring the last worker equals the average wage rate of workers

d.the additional cost associated with hiring the last worker equals the additional revenue generated by that worker.

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11. In your later studies in economics, you will Supply Curve of Labour learn that supply curves for labour can be "backward bending" (that is, can be negatively sloped if a rise in the wage rate leads workers to want to work less in order to take more vacations and more leisure time). Such a supply curve is represented at the right, where w is the wage rate per hour and L is the number of hours of labour. The demand curve for labour (representing the number of hours of labour demanded by firms which hire these workers) can be assumed to be downward sloping, as usual in this course. Which of the following statements about the stability of this situation is (are) generally true? 1) This labour market will be stable if the demand curve is flatter than the supply curve. In This labour market is inherently unstable. III) This labour market will be stable if a rise in wages Icads to excess supply of hours of work. A) only! B) only II C) only III DI & II (E) & III F) II & III G) I, II & III ) none of the three L

(1)

Which of the following employment situations would most closely approximate a monopsony?

	a steel mill in Yokahama, Japan.
	a fast food restaurant in a big city.
	a farmer hiring seasonal workers.
	a large factory in a small town.

(2)

If a monopsonist hires labor, it will choose to hire that quantity at which ___________ and pay a wage rate that is _______________.

	MR = MC; equal to the MRP curve.
	the supply curve intersect the MRP; less than MFC
	MRP = MFC; less than MRP
	the supply curve intersect the MRP; equal to MRP

(3)

Suppose a firm employs both labor and capital. If the ratio of marginal product to price of labor is 50/$10 and the ratio of marginal product of capital to price of capital is 60/$12, the firm should

	maintain the current combination capital and labor.
	buy more labor and less capital because labor is cheaper.
	buy more capital and less labor because capital is cheaper.
	buy more capital because it is more productive than labor.

(4)

Derived demand for labor means that when a firm hires labor, it has to derive its demand

	mathematically.
	based on the labor supply.
	from the demand for the product that the labor produces.
	based on the minimum wage.

(5)

For a firm in perfect competition, the value of the marginal product is

	the value of an additional unit of output measured in terms of additional cost.
	the total value of the total output output divided by the total output.
	additional revenue minus additional cost as a result of an increase in output.
	the price of the product multiplied by the additional output resulting from an additional unit employed.

(6)

A firm that is perfectly competitive will hire labor as long as which of the following is true?

	VMP < W.
	VMP > W.
	MC > MR.
	VMP < MRP.

(7)

The VMP curve slopes downward at some point because

	congestion in the work place lowers marginal product.
	teamwork in the work place increases marginal product.
	the firm hires less labor as the wage rate rises.
	labor supplies less amounts of labor as the wage rate falls.

(8)

Which of the following would not be considered capital in a business?

	The employees
	The factory
	A machine
	Tools

(9)

The increase in the value of a firmâs capital as it increases in age and use is depreciation.

	true
	false

(10)

On a labor market graph, a firmâs demand for labor is

	the wage rate.
	the marginal revenue product curve.
	the marginal product curve.
	indeterminant.

(11)

Why may a householdâs labor supply curve bend backwards at some wage rate?

	The household substitutes labor for leisure.
	The household substitutes leisure for labor.
	Employers demand fewer employees at higher wage rates.
	Households want to supply more labor as the wage rate decreases to maintain incomes.

(12)

The substitution effect is usually stronger than the income effect, thus creating an upward sloping labor supply curve.

	true
	false

(13)

An inelastic demand for labor means that an increase in the wage rate causes a less than proportionate decrease in the quantity of labor demanded.

	true
	false

(14)

Marginal revenue product is

	marginal revenue divided by marginal product.
	marginal revenue times marginal product.
	marginal product minus marginal revenue.
	marginal product plus marginal revenue.

(15)

A firm obeys the least-cost rule by equating the ratios of ___________________ to the ________________ price.

	marginal product; product
	marginal product; factor
	marginal cost; product
	marginal revenue; product

(16)

Suppose the MP of the last unit of capital hired equals 12 and the MP of the last unit of labor hired equals 16.If the price of capital is $8 per unit and the price of labor is $8 per unit, then the firm

	is maximizing its costs with this combination of factors.
	is maximizing its profits with this combination of factors.
	should hire more labor and less capital in order to minimize its costs.
	should hire more capital and less labor in order to minimize its costs.

(17)

For a firm to minimize its costs with more than one factor of production, for every factor, the ratio of the

	marginal product to factor price must be equal.
	marginal revenue product to factor price must be equal.
	marginal revenue product to output must be equal.
	marginal cost to factor price must be equal.

(18)

A monopsony is a firm that, in a specific market, is the only

	seller of a product.
	buyer of a product.
	seller of a factor of production.
	buyer of a factor of production.

(19)

Which of the following businesses would most closely approximate a monopsonist?

	A steel mill in Pittsburgh
	A fast food franchise in a large city
	A large manufacturer in a rural county
	A rancher who hires ranch help

(20)

A firm has the opportunity to buy a machine that costs $2500. It has found the present value of the income generated by the machine to be $2487. It should purchase the machine.

	true
	false

(21)

An increase in the market rate of interest causes

	a leftward shift in the demand for capital curve.
	a rightward shift in the demand for capital curve.
	a movement up the demand for capital curve.
	a movement down the demand for capital curve.

(22)

The characteristic of capital that makes it different from labor is its

	high cost.
	durability.
	rotunda.
	relatively low cost compared to labor.

(23)

The present value of $1000 one year in the future at a 10 percent interest rate is approximately

	$870.
	$909.
	$1000.
	$1909.

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ECON211 Lecture Notes - Lecture 5: Normal Good, Aggregate Demand, Root Mean Square

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