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Ppt econ 9e_one_click_ch10
1.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 1 of 22 PowerPoint Lectures for Principles of Economics, 9e By Karl E. Case, Ray C. Fair & Sharon M. Oster ; ;
2.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 2 of 22
3.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster Input Demand: The Labor and Land Markets Fernando & Yvonn Quijano Prepared by:
4.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 4 of 24 10Input Demand: The Labor and Land Markets Input Markets: Basic Concepts Demand for Inputs: A Derived Demand Inputs: Complementary and Substitutable Diminishing Returns Marginal Revenue Product Labor Markets A Firm Using Only One Variable Factor of Production: Labor A Firm Employing Two Variable Factors of Production in the Short and Long Run Many Labor Markets Land Markets Rent and the Value of Output Produced on Land The Firm’s Profit-Maximizing Condition in Input Markets Input Demand Curves Shifts in Factor Demand Curves Resource Allocation and the Mix of Output in Competitive Markets The Distribution of Income Looking Ahead CHAPTER OUTLINE PART II THE MARKET SYSTEM Choices Made by Households and Firms
5.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 5 of 24 Input Markets: Basic Concepts derived demand The demand for resources (inputs) that is dependent on the demand for the outputs those resources can be used to produce. productivity of an input The amount of output produced per unit of that input. Inputs are demanded by a firm if and only if households demand the good or service produced by that firm. Demand for Inputs: A Derived Demand
6.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 6 of 24 Input Markets: Basic Concepts Inputs: Complementary and Substitutable Inputs can be complementary or substitutable. Two inputs used together may enhance, or complement, each other. marginal product of labor (MPL) The additional output produced by 1 additional unit of labor. Diminishing Returns
7.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 7 of 24 Input Markets: Basic Concepts Diminishing Returns TABLE 10.1 Marginal Revenue Product per Hour of Labor in Sandwich Production (One Grill) (1) Total Labor Units (Employees) (2) Total Product (Sandwiches per Hour) (3) Marginal Product Of Labor (MPL) (Sandwiches per Hour) (4) Price (PX) (Value Added per Sandwich)a (5) Marginal Revenue Product (MPL X PX) (per Hour) 0 0 − − − 1 10 10 $0.50 $5.00 2 25 15 0.50 0.50 3 35 10 0.50 0.50 4 40 5 0.50 0.50 5 42 2 0.50 0.50 6 42 0 0.50 0.50 a The “price” is essentially profit per sandwich; see discussion in text.
8.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 8 of 24 Input Markets: Basic Concepts Marginal Revenue Product marginal revenue product (MRP) The additional revenue a firm earns by employing 1 additional unit of input, ceteris paribus. MRPL = MPL x PX
9.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 9 of 24 Input Markets: Basic Concepts Marginal Revenue Product FIGURE 10.1 Deriving a Marginal Revenue Product Curve from Marginal Product The marginal revenue product of labor is the price of output, PX, times the marginal product of labor, MPL.
10.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 10 of 24 Labor Markets A Firm Using Only One Variable Factor of Production: Labor FIGURE 10.2 Marginal Revenue Product and Factor Demand for a Firm Using One Variable Input (Labor) A competitive firm using only one variable factor of production will use that factor as long as its marginal revenue product exceeds its unit cost. A perfectly competitive firm will hire labor as long as MRPL is greater than the going wage, W*. The hypothetical firm will demand 210 units of labor.
11.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 11 of 24 Labor Markets A Firm Using Only One Variable Factor of Production: Labor Comparing Marginal Revenue and Marginal Cost to Maximize Profits FIGURE 10.3 The Two Profit-Maximizing Conditions Are Simply Two Views of the Same Choice Process
12.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 12 of 24 Labor Markets A Firm Using Only One Variable Factor of Production: Labor Comparing Marginal Revenue and Marginal Cost to Maximize Profits FIGURE 10.4 The Trade-Off Facing Firms Firms weigh the cost of labor as reflected in wage rates against the value of labor’s marginal product. Assume that labor is the only variable factor of production. Then, if society values a good more than it costs firms to hire the workers to produce that good, the good will be produced.
13.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 13 of 24 Labor Markets A Firm Using Only One Variable Factor of Production: Labor Deriving Input Demands Calculating the marginal product of a variable input (labor) and marginal revenue product is essentially the same for both big corporations and small proprietorships. Workers are hired because the entrepreneur expects that their current efforts will produce future revenues greater than their wage costs.
14.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 14 of 24 Labor Markets A Firm Employing Two Variable Factors of Production in the Short and Long Run In firms employing just one variable factor of production, a change in the price of that factor affects only the demand for the factor itself. When more than one factor can vary, however, we must consider the impact of a change in one factor price on the demand for other factors as well.
15.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 15 of 24 Labor Markets A Firm Employing Two Variable Factors of Production in the Short and Long Run Substitution and Output Effects of a Change in Factor Price TABLE 10.2 Response of a Firm to an Increasing Wage Rate Technology Input Requirements Per Unit Of Output Unit Cost if PL = $1 PK = $1 (PL x L) + (PK x K) Unit Cost if PL = $2 PK = $1 (PL x L) + (PK x K) K L A (capital intensive) 10 5 $15 $20 B (labor intensive) 3 10 $13 $23
16.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 16 of 24 Labor Markets A Firm Employing Two Variable Factors of Production in the Short and Long Run Substitution and Output Effects of a Change in Factor Price TABLE 10.3 The Substitution Effect of an Increase in Wages on a Firm Producing 100 Units of Output To Produce 100 Units of Output Total Capital Demanded Total Labor Demanded Total Variable Cost When PL = $1, PK = $1, firm uses technology B 300 1,000 $1,300 When PL = $2, PK = $1, firm uses technology A 1,000 500 $2,000
17.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 17 of 24 Labor Markets A Firm Employing Two Variable Factors of Production in the Short and Long Run Substitution and Output Effects of a Change in Factor Price factor substitution effect The tendency of firms to substitute away from a factor whose price has risen and toward a factor whose price has fallen. output effect of a factor price increase (decrease) When a firm decreases (increases) its output in response to a factor price increase (decrease), this decreases (increases) its demand for all factors.
18.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 18 of 24 Labor Markets A Firm Employing Two Variable Factors of Production in the Short and Long Run Substitution and Output Effects of a Change in Factor Price Theater or the Movies? Roberts’ MRP depends not only on her talent but also on the way that talent is used by employers.
19.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 19 of 24 Labor Markets Many Labor Markets If labor markets are competitive, the wages in those markets are determined by the interaction of supply and demand. As we have seen, firms will hire workers only as long as the value of their product exceeds the relevant market wage. This is true in all competitive labor markets.
20.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 20 of 24 Land Markets demand-determined price The price of a good that is in fixed supply; it is determined exclusively by what firms and households are willing to pay for the good. pure rent The return to any factor of production that is in fixed supply. FIGURE 10.5 The Rent on Land Is Demand-Determined Because land in general (and each parcel in particular) is in fixed supply, its price is demand- determined. Graphically, a fixed supply is represented by a vertical, perfectly inelastic supply curve. Rent, R0, depends exclusively on demand—what people are willing to pay.
21.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 21 of 24 Land Markets Rent and the Value of Output Produced on Land Time Is Money High-Speed Rail Give Short- Haul Air a Run for the Money in Europe, with More Flexible Travel, Greater Comfort, Lower Environmental Impact Travel Industry News A firm will pay for and use land as long as the revenue earned from selling the product produced on that land is sufficient to cover the price of the land. Stated in equation form, the firm will use land up to the point at which MRPA= PA, where A is land (acres).
22.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 22 of 24 The Firm’s Profit-Maximizing Condition in Input Markets Profit-maximizing condition for the perfectly competitive firm is PL = MRPL = (MPL x PX) PK = MRPK = (MPK x PX) PA = MRPA = (MPA x PX) where L is labor, K is capital, A is land (acres), X is output, and PX is the price of that output.
23.
CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 23 of 24 Input Demand Curves Shifts in Factor Demand Curves The Demand for Outputs If product demand increases, product price will rise and marginal revenue product (factor demand) will increase—the MRP curve will shift to the right. If product demand declines, product price will fall and marginal revenue product (factor demand) will decrease—the MRP curve will shift to the left. The production and use of capital enhances the productivity of labor and normally increases the demand for labor and drives up wages. The Quantity of Complementary and Substitutable Inputs
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CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 24 of 24 Input Demand Curves Shifts in Factor Demand Curves The Prices of Other Inputs When a firm has a choice among alternative technologies, the choice it makes depends to some extent on relative input prices. Technological Change technological change The introduction of new methods of production or new products intended to increase the productivity of existing inputs or to raise marginal products.
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CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 25 of 24 Resource Allocation and the Mix of Output in Competitive Markets The Distribution of Income marginal productivity theory of income distribution At equilibrium, all factors of production end up receiving rewards determined by their productivity as measured by marginal revenue product.
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CHAInputDemand:The © 2009 Pearson
Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 26 of 24 demand-determined price derived demand factor substitution effect marginal product of labor (MPL) marginal productivity theory of income distribution marginal revenue product (MRP) output effect of a factor price increase (decrease) productivity of an input pure rent technological change Equations: MRPL = MPL x PX W*= MRPL REVIEW TERMS AND CONCEPTS
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