Marginal analysis

Welcome to this session on marginal analysis. Marginal analysis is an essential concept in economics and managerial decision making. At its core, it involves examining the additional or incremental change resulting from a specific action, whether that's producing one more unit of a product, investing in another marketing campaign, or hiring an extra employee. Rather than considering totals or averages, marginal analysis sharpens the focus on the impact of incremental changes and enables managers and individuals to make more informed rational decisions by weighing the additional benefits against the additional costs. Let's explore the main components, marginal cost and marginal benefit. Marginal cost is the extra cost incurred by producing one more unit, while marginal benefit is the extra gain from consuming or producing that unit. For example, a manufacturer weighs the marginal cost of producing the 101st share against the marginal revenue from selling it. The rational decision rule is to continue in action as long as marginal benefit exceeds marginal cost and only stop when cost meets or exceeds benefit. This principle applies broadly from pricing in markets to investment decisions. In business, marginal analysis is integral to various decision making processes. Managers use it in contexts such as pricing, production planning, and evaluating special projects. For example, in break even analysis, firms calculate the point at