Tightness may refer to: In mathematics, * Tightness of (a collection of) measures is a concept in measure (and probability) theory * Tightness (topology) is also a cardinal function used in general topology In

economics Economics () is the social science that studies the production, distribution, and consumption of goods and services. Economics focuses on the behaviour and interactions of economic agents and how economies work. Microeconomics analy ...

, * Tightness refers to the degree to which the number of unemployed workers exceed the number of posted job vacancies (or vice versa). * Market tightness, a point in time where it is very difficult to invest, but it is far easier to sell or to remove investments in return of monetary rewards In other fields, * Tightness of a rope indicates the rope is under tension * Tightness of a sealing means it is

impermeable Permeability, permeable, and semipermeable may refer to: Chemistry *Semipermeable membrane, a membrane which will allow certain molecules or ions to pass through it by diffusion *Vascular permeability, the movement of fluids and molecules betwe ...

, that it seals well * Tightness is the art of being 'tight' (i.e., stingy or

miser A miser is a person who is reluctant to spend, sometimes to the point of forgoing even basic comforts and some necessities, in order to hoard money or other possessions. Although the word is sometimes used loosely to characterise anyone who ...

ly) * Tightness can refer to something being cool

See also