Demand management is a planning methodology used to forecast, plan for and manage the demand for products and services. This can be at macro-levels as in economics and at micro-levels within individual organizations. For example, at macro-levels, a government may influence interest rates to regulate financial demand. At the micro-level, a cellular service provider may provide free night and weekend use to reduce demand during peak hours.

Demand management has a defined set of processes, capabilities and recommended behaviors for companies that produce goods and services. Consumer electronics and goods companies often lead in the application of demand management practices to their demand chains; demand management outcomes are a reflection of policies and programs to influence demand as well as competition and options available to users and consumers. Effective demand management follows the concept of a "closed loop" where feedback from the results of the demand plans is fed back into the planning process to improve the predictability of outcomes. Many practices reflect elements of systems dynamics. Volatility is being recognized as significant an issue as the focus on variance of demand to plans and forecasts.

In macroeconomics, demand management it is the art or science of controlling aggregate demand to avoid a recession.

Demand management at the macroeconomic level involves the use of discretionary policy and is inspired by Keynesian economics, though today elements of it are part of the economic mainstream. The underlying idea is for the government to use tools like interest rates, taxation, and public expenditure to change key economic decisions like consumption, investment, the balance of trade, and public sector borrowing resulting in an 'evening out' of the business cycle. Demand management was widely adopted in the 1950s to 1970s, and was for a time successful. It caused the stagflation of the 1970s, which is considered to have been precipitated by the supply shock caused by the 1973 oil crisis.

Theoretical criticisms of demand management are that it relies on a long-run Phillips Curve for which there is no evidence, and that it produces dynamic inconsistency and can therefore be non-credible.

Today, most governments relatively limit interventions in demand management to tackling short-term crises, and rely on policies like independent central banks and fiscal policy rules to prevent long-run economic disruption.

In natural resources management and environmental policy more generally, demand management refers to policies to control consumer demand for environmentally sensitive or harmful goods such as water and energy. Within manufacturing firms the term is used to describe the activities of demand forecasting, planning, and order fulfillment. In the environmental context demand management is increasingly taken seriously to reduce the economy's throughput of scarce resources for which market pricing does not reflect true costs. Examples include metering of municipal water, and carbon taxes on gasoline.

Demand management in economics focuses on the optimal allocation resources to affect social welfare.