Construct · 3 fields · 4 citations

Where does dilution collide?

One name. Different field. Different construct. One map.

● jingle · one word, three constructs Nearest construct by meaningsolutioncompare the meanings
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Every construct on the map is compared with every other by the meaning of its definitions, and the closest one is surfaced here. The nearest construct to dilution is solution.

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dilution3 CONSTRUCTSDilution effectNISBETT · JUDGMENT SHIFTShare dilutionMYERS-MAJLUF · OWNERSHIPEcological dilutionOSTFELD-KEESING · DISEASE

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2026

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Social and cognitive psychology

Irrelevant information weakening the pull of relevant information on a judgment

In social and cognitive psychology, the dilution effect is the way that adding information which has no bearing on a judgment weakens the influence of the information that does bear on it, pulling estimates toward a middle, less extreme value. Nisbett, Zukier, and Lemley's 1981 The dilution effect: Nondiagnostic information weakens the implications of diagnostic information named and demonstrated the pattern, showing that people given useless extra details about a person made more cautious predictions than those given only the relevant details. The referent is a shift in human judgment caused by irrelevant facts, gauged by how far predictions move, and it has nothing to do with a chemical solution, a stake in a company, or the spread of an infection.[1]

Unit
A change in a person's judgment or prediction when nondiagnostic information is added
Recovery means
Not applicable
Measured by
Assessed by comparing how extreme predictions are with diagnostic information alone versus with added nondiagnostic information

Corporate finance

The fall in existing shareholders' ownership fraction when new shares are issued

In corporate finance, dilution is the reduction in existing shareholders' fractional ownership, and often in earnings and value per share, that follows when a company issues new shares. Myers and Majluf's 1984 Corporate financing and investment decisions when firms have information that investors do not have made this central, showing that when managers know more than investors, issuing equity can transfer value from current owners to new ones, a dilution that can lead firms to avoid raising equity. The plainer idea of ownership being watered down by fresh issues is older than this formal treatment, but the referent is a change in a claim on a company, counted as a percentage of shares or of value per share, and it is not a chemical concentration, a biased judgment, or a disease risk.[2]

Unit
One shareholder's holding as a fraction of all shares, or earnings and value per share
Recovery means
Reversible in part when the firm repurchases shares
Measured by
Computed as the fall in ownership percentage, or in basic and diluted earnings per share, after new shares are issued

Disease ecology

Greater biodiversity lowering the risk of infectious disease

In disease ecology, the dilution effect is the tendency for greater biodiversity in a community to lower the risk of infectious disease, because many of the added species are poor hosts that absorb infectious contacts without passing the pathogen on. Ostfeld and Keesing's 2000 Biodiversity and disease risk: The case of Lyme disease introduced this meaning for tick-borne infection, and Keesing, Holt, and Ostfeld's 2006 Effects of species diversity on disease risk set out the general conditions under which added diversity raises or lowers transmission. The referent is a property of an ecological community, gauged as a change in infection or transmission across a diversity gradient, and it shares only the word with a chemical solution, a shareholding, or a shift in human judgment.[3][4]

Unit
The level of infection or transmission risk in a community, across a range of species diversity
Recovery means
Not applicable
Measured by
Estimated by relating host or vector infection prevalence, or transmission rates, to measured species diversity across sites

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Nearby collisions

concentration4 fields · 4 citationsjingle · one word, four constructssolution3 fields · 4 citationsjingle · one word, three constructsbiodiversity3 names · 4 citationsjangle · one idea, four rival measures

References

  1. Nisbett, R. E., Zukier, H., & Lemley, R. E. (1981). The dilution effect: Nondiagnostic information weakens the implications of diagnostic information. Cognitive Psychology, 13(2), 248–277. https://doi.org/10.1016/0010-0285(81)90010-4
  2. Myers, S. C., & Majluf, N. S. (1984). Corporate financing and investment decisions when firms have information that investors do not have. Journal of Financial Economics, 13(2), 187–221. https://doi.org/10.1016/0304-405X(84)90023-0
  3. Ostfeld, R. S., & Keesing, F. (2000). Biodiversity and disease risk: The case of Lyme disease. Conservation Biology, 14(3), 722–728. https://doi.org/10.1046/j.1523-1739.2000.99014.x
  4. Keesing, F., Holt, R. D., & Ostfeld, R. S. (2006). Effects of species diversity on disease risk. Ecology Letters, 9(4), 485–498. https://doi.org/10.1111/j.1461-0248.2006.00885.x

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