Where does allocation collide?

In welfare economics, allocation is the assignment of scarce resources among competing uses and people, judged by whether it can be improved. Pareto's 1906 Manuale di economia politica defined the standard still used today: an allocation is optimal when no one can be made better off without making someone else worse off. Arrow and Debreu's 1954 Existence of an equilibrium for a competitive economy proved that a system of competitive markets can support such an allocation, formalising how prices coordinate the distribution of goods. Here the thing being divided is material resources and goods among agents, which is different from an organism's energy budget, a computer's memory, or a person's attention.[1][2]

Unit

One assignment of goods and factors across agents and uses, judged against a benchmark of efficiency

Recovery means

Not applicable

Measured by

Assessed by welfare criteria such as Pareto efficiency and by general-equilibrium models of prices and quantities

In life-history biology, allocation is the division of an organism's limited energy and resource budget among competing functions such as growth, maintenance, and reproduction. Cody's 1966 A general theory of clutch size set out the principle of allocation: because the budget is fixed, energy spent on one function cannot be spent on another, so a gain in one trait is paid for by a loss in another. The referent is an internal biological budget partitioned by an individual organism over its lifetime, not goods traded among people, blocks of computer memory, or mental effort.[3]

Unit

The fraction of an individual's energy budget devoted to a given function, such as growth or reproduction

Recovery means

Not applicable

Measured by

Estimated by reproductive effort, biomass partitioning, and trade-off curves between life-history traits

In cognitive psychology, allocation is the distribution of a person's limited mental capacity across the tasks they are trying to do at once. Kahneman's 1973 Attention and Effort proposed that attention is a single pool of limited capacity governed by an allocation policy, which decides how much effort each activity receives moment to moment. What is divided here is internal attentional capacity within one mind, unlike goods shared among people, energy within a body, or memory inside a machine.[4]

Unit

The share of limited attentional capacity given to one task at a moment

Recovery means

Not applicable

Measured by

Inferred from dual-task performance, reaction time, and effort indices such as pupil dilation