A make-or-buy decision involves choosing whether to manufacture a product internally or purchase it from an external supplier. Key factors in make-or-buy decisions are business strategy, risk, and economics. Approaches to make-or-buy decisions include simple cost analysis, economic analysis, and break-even analysis. Simple cost analysis compares total internal manufacturing costs to total external purchasing costs to determine the lowest cost option. Economic analysis examines costs and profits in more depth. Break-even analysis is used to predict future profits, losses, and results of different production options. A structured process using one of these analytical approaches can help companies make optimal make-or-buy decisions.