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Chapter 4: How Businesses Work
Economics: The Basics
34
Economics
Undergraduate 1
09/14/2010

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Term
Outputs
Definition
The goods and services it sells to customers. 
Term
Inputs
Definition
The goods and services a business or an economy uses to produce outputs. 
Term
Production
Definition
The process of turning inputs into outputs. 
Term
Revenue
Definition
The amount of money companies get from selling their products or services.
Term
Cost
Definition
The money a business pays for its inputs. 
Term
Profit
Definition
The difference between revenues and costs. 
Term
Profit maximization
Definition
The main objective of a business in a market economy: finding a way to achieve the largest difference between revenue and costs. 
Term
Labor
Definition
The inputs supplied by various types of workers. Measured by the hours of work or the number of workers. 
Term
Capital
Definition
The long-lived physical equipment, software, and structures a business uses in its production process.
Term
Land
Definition
The actual ground used by a business. Distinct from the buildings on the land.
Term
Intermediate inputs
Definition
Any goods or services purchased from other businesses and used up in production. 
Term
Business know-how
Definition
The knowledge and technology necessary for the production process.
Term
Production function
Definition
The link between the inputs of a business and its outputs.
Term
Marginal product of labor
Definition
The extra amount of output a firm can generate by adding one more worker or one more hour of labor. 
Term
Diminishing marginal product
Definition
A situation where marginal product declines as a business adds workers without changing other inputs. 
Term
Average product
Definition
The total output of a business divided by the number of labor hours or by the number of workers. Also output per hour or output per worker. 
Term
Outsourcing
Definition
Shift of labor to third parties to handle tasks once done by a firm's own employees. 
Term
Cost of labor
Definition
Monetary outlays for labor, including benefits. 
Term
Cost of capital and land
Definition
Outlays for buying or renting equipment, structures, and land. 
Term
Cost of intermediate inputs
Definition
Outlays for goods and services purchased from other companies. 
Term
Cost of accumulating business know-how
Definition
Outlays that increase a company's knowledge and capabilities.
Term
Total cost
Definition
The sum of costs for each of the inputs used in production. 
Term
Cost function
Definition
Reports the total cost of producing each level of output. 
Term
Marginal cost
Definition
The added expense of producing one more unit of output. 
Term
Variable costs
Definition
Costs that managers can quickly raise or lower by decisions they make today. 
Term
Fixed costs
Definition
Costs that are difficult to change in the short run.
Term
Short-term costs
Definition
Variable costs.
Term
Long-term costs
Definition
Fixed costs.
Term
Short-term cost function
Definition
The link between the output of a business and the cost of producing that output, assuming that fixed costs cannot be changed. 
Term
Long-term cost function
Definition
The link between the output of a business and the cost of producing that output, allowing for all inputs to be changed. 
Term
Marginal revenue
Definition
The additional money a business gets from producing and selling one more unit of output; or the additional money that a business gets from adding one more worker or one more hour of labor. 
Term
Profit-maximizing rule
Definition
A profit-maximizing business will increase production as long as marginal revenue exceeds marginal cost. 
Term
Short-term profit maximization
Definition
The process of running a business to achieve the greatest excess of revenues over costs, assuming that fixed costs cannot be changed. 
Term
Long-term profit maximazation
Definition
Profit maximization by businesses, assuming that all inputs can be changed and that there is the option to shut down. 
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