Relevant costs and benefits should be considered when making decisions
Irrelevant costs and benefits should be ignored when making decisions
Differential analysis
Focusing on the future costs and benefits that differ between the alternatives
Sunk costs
A cost that has already been incurred and cannot be changed regardless of what a manager decides to do
Sunk costs are always irrelevant when choosing among alternatives
Opportunity cost
The potential benefit that is given up when one alternative is selected over another
Relevant costs that must be considered is every decision a manager makes
Make or buy decision
Decision whether to carry out one of the activities in the value chain internally or to buy externally from a supplier
Special order
One-time order that is not considered part of the company's normal ongoing business
Volume trade-off decisions
Comapanies must trade off, or sacrifice production of some products in favor of others in an effort to maximize profits
Companies are forced to make these decisions when they do not have enough capacity to produce all of the products and sales volumes demanded by their customers
Constraints
Anything that prevents you from getting more of what you want
Managers can increase profits by producing the products with the highest contribution margin per unit of the constrained resource
Managers can also increase profits by increasing the capacity of the bottleneck operation
Joint products
Two or more products that are produced from a common input
Adding and dropping product lines and other segments
Costs can be analyzed by either Cost Analysis or a Comparative format income statement
Managers must be careful of allocated fixed costs that may make a product line look less profitable than it really is