Dickey–Fuller
A statistical test used to determine if a time series is a random walk or stationary.
Diffusion of Innovations
The spreading of innovations round the economy, and between countries.
Dillon Round
An intricate and pivotal round of multilateral trade negotiations conducted under the General Agreement on Tariffs and Trade (GATT) framework that laid the groundwork for contemporary global trade practices.
Dilution
An economical process affecting share value and ownership percentages through the issue of additional common stock by a company.
Diminishing Marginal Product
An explanation of the economic principle of diminishing marginal product, where the addition of successive extra units of an input yields smaller increases in output.
Diminishing Marginal Utility
An economic principle describing the decrease in added satisfaction or utility as additional units of a good or service are consumed.
Diminishing Returns to Scale
When the marginal product of a factor falls as more of that factor is used, holding the quantity of other factors constant.
Direct Investment Abroad
An overview and analysis of direct investment abroad, referring to foreign direct investment.
Direct Labour
The use of a local authority's own employees for certain types of work.
Direct Tax
A comprehensive entry on the concept of Direct Tax in economics, its definition, context, and comparative analysis.
Directive of the European Union
A legislative act of the European Union that requires member states to achieve a specified outcome but which does not dictate the method of achieving the outcome.
Director
An overview of the term 'director' in the context of economics and business