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Resource Demand. Resource Demand. An increase in the demand for a product will increase the demand for a resource used in its production A decrease in product demand will decrease the demand for that resource. Changes in Productivity. Three ways to alter the productivity of any resource:
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Resource Demand • An increase in the demand for a product will increase the demand for a resource used in its production • A decrease in product demand will decrease the demand for that resource
Changes in Productivity • Three ways to alter the productivity of any resource: • Quantities of other resources • Technological advance • Quality of the varied resource
Demand Curves to Shift • Changes in prices of goods • Changes in supply of other factors • Changes in technology
1. Changes in prices of goods • Factor Demand = Derived Demand • P X MPL
Shifts of the Value of the Marginal Product Curve (a) An Increase in the Price of Wheat (b) A Decrease in the Price of Wheat Wage rate Wage rate C A A B Market wage rate $200 $200 MPL 1 MPL MPL 3 2 MPL 1 0 5 8 0 2 5 Quantity of labor (workers) Quantity of labor (workers)
2. Changes in supply of other factors • George and Martha acquire more land! • Each worker now produces more wheat because they have more land to work with • What happens to the Marginal Product of Labor? • MPL will rise at any given level of employment
Shifts of the Value of the Marginal Product Curve (a) An Increase in the Price of Wheat (b) A Decrease in the Price of Wheat Wage rate Wage rate C A A B Market wage rate $200 $200 MPL 1 MPL MPL 3 2 MPL 1 0 5 8 0 2 5 Quantity of labor (workers) Quantity of labor (workers)
3. Changes in technology • Improved technology can increase or reduce demand for a given factor of production • How can technological producer reduce factor demand? • Ex. Horses and Transportation Revolution • Usual effect of technological progress is to increase demand for a given factor
Elasticity of Resource Demand • Measures the extent to which producers change the quantity of a resource they hire when its price changes • Erd > 1 = resource demand is elastic • Erd < 1 = resource demand is inelastic • Erd = 1 = resource demand is unit-elastic
Elasticity of Resource Demand • Sustainability is a fundamental determinant of elasticity • The greater the sustainability of other resources, the more elastic is the demand for a particular resource
Elasticity of Resource Demand • Demand for labor is a derived demand, the elasticity of the demand for the output that the labor is producing will influence the elasticity of the demand for labor • Greater the price elasticity of product demand, the greater the elasticity of resource demand
Optimal Combination of Resources • What combination of resources a firm will choose when ALL its inputs are variable? • What combination of resources will minimize costs at a specific level of output? • Least-cost combination of resources • The last dollar spend on each resource yields that same MP
Optimal Combination of Resources • Profit-Maximizing combination of resources is when each resource is employed to the point at which its marginal revenue product equals its resource price • Labor – PL = MRPL • Capital – PC = MRPC
Resource Demand • A decrease in product demand will decrease the demand for that resource
Changes in Productivity • Three ways to alter the productivity of any resource:
Demand Curves to Shift • Changes in _________________ • Changes in _________________ • Changes in _________________
1. Changes in prices of goods • Factor Demand = _______________ • P X MPL
Shifts of the Value of the Marginal Product Curve (a) An Increase in the Price of Wheat (b) A Decrease in the Price of Wheat Wage rate Wage rate C A A B Market wage rate $200 $200 MPL 1 MPL MPL 3 2 MPL 1 0 5 8 0 2 5 Quantity of labor (workers) Quantity of labor (workers)
2. Changes in supply of other factors • George and Martha acquire more land! • Each worker now produces more wheat because they have more land to work with • What happens to the Marginal Product of Labor?
Shifts of the Value of the Marginal Product Curve (a) An Increase in the Price of Wheat (b) A Decrease in the Price of Wheat Wage rate Wage rate C A A B Market wage rate $200 $200 MPL 1 MPL MPL 3 2 MPL 1 0 5 8 0 2 5 Quantity of labor (workers) Quantity of labor (workers)
3. Changes in technology • Improved technology can increase or reduce demand for a given factor of production • How can technological producer reduce factor demand?
Elasticity of Resource Demand • Measures the extent to which producers change the quantity of a resource they hire when its price changes • Erd > 1 = resource demand is _________ • Erd < 1 = resource demand is _________ • Erd = 1 = resource demand is _________
Elasticity of Resource Demand • Sustainability is a fundamental determinant of elasticity
Elasticity of Resource Demand • Demand for labor is a derived demand, the elasticity of the demand for the output that the labor is producing will influence the elasticity of the demand for labor • Greater the price elasticity of product demand, the greater the elasticity of resource demand
Optimal Combination of Resources • What combination of resources a firm will choose when ALL its inputs are variable? • What combination of resources will minimize costs at a specific level of output? • Least-cost combination of resources • The last dollar spend on each resource yields that same MP
Optimal Combination of Resources • Profit-Maximizing combination of resources is when each resource is employed to the point at which its marginal revenue product equals its resource price • Labor – ____ = ____ • Capital – ____ = ____