What is Average Variable Cost?

The cost of producing a firm’s output depends on how much labor and physical capital the firm uses. A list of the costs involved in producing cars will look very different from the costs involved in producing computer software or haircuts or fast-food meals.

We can measure costs in a variety of ways. Each way provides its own insight into costs. Sometimes firms need to look at their cost per unit of output, not just their total cost. There are two ways to measure per unit costs. The most intuitive way is average cost. Average cost is the cost on average of producing a given quantity. 

We define average cost as total cost divided by the quantity of output produced. AC = TC / Q If producing two widgets costs a total of $44, the average cost per widget is $44 / 2 = $22 per widget. The other way of measuring cost per unit is marginal cost.

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Relate Topics

• Theory of the Firm
• Capital Formation
• Rent Seeking
• Structure Conduct Performance Model
• Integration
• Co-Insurance Effect
• Conglomerates
• Cost vs Profit Center
• Accelerator Theory
• Market Structure
• Fixed Cost vs Variable Cost
• Actual vs Implicit Costs
• Explicit Costs
• True Cost Economics
• Accounting Profit
• Economic Profit
• What are Factors of Production?
• Factor Income
• Production Function
• Fixed and Variable Inputs
• Short-Run and Long-Run Production
• Short Run
• Total Product
• Marginal Product
• Value of Marginal Product
• Law of Marginal Diminishing Product
• Production Function
• Production Possibilities Frontier
• Capital 
• Labor Theory of Value
• How the Production Function Estimates Inputs
• Factor Payment
• Economic Rent
• Cost Function
• Incremental Cost
• Marginal Input Cost  
• Fixed and Variable Costs
• Diminishing Marginal Productivity
• Costs Relate to Diminishing Marginal Productivity
• Law of Diminishing Marginal Returns
• Average Total Cost
• Average Variable Cost
• Marginal Cost
• Average Profit or Profit Margin
• Accounting Profit
• Economic Profit
• Normal Profit
• Short and Long-Run Production
• Cost Curves
• Long-Run Average Cost (LRAC)
• Production Technologies
• Economies of Scope
• Economies of Scale
• Diseconomies of Scale
• Minimum Efficient Scale
• Increasing, Constant, and Decreasing Returns to Scale
• Shape of the Average Long-Run and Short-Run Cost Curves
• Returns to Scale
• Diseconomies of Scale
• Long-Run Average Cost Curve Affect Industry Competitors
• Technology Shifts the Long-Run Average Cost Curve
• Law of Diminishing Marginal Returns