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What is marginality?

In this article, Steven Proud examines the concept of marginality, a key economic principle. He highlights the role of marginal cost and marginal revenue in profit maximisation, showing how firms adjust production to the point where these two values are equal, and makes the concept relevant beyond the business world

Why don’t producers choose to produce at the point that maximises revenue?
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marginal cost, marginal revenue, opportunity cost and decision-making, wage determination, price takers vs. price makers

Economists often discuss decisions being made at the margin, and you will have experienced discussions of marginal revenue (or marginal benefits) and marginal costs as being used to make decisions. Firms are often thought of as choosing to produce at the point where marginal revenue is equal to marginal cost. Wages are often thought of as being determined by the marginal product of labour. Consumption decisions are made based on the marginal cost weighed against the marginal benefit.

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Previous

Market failure

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Question and answer: Contestable markets