(economics) The idea that the prices generated by a financial market represent the best possible estimate of any investment’s value.

A form of cognitive bias by which people believe that someone's actions are inherently inclined to bring morally fair and fitting consequences upon them, with good deeds rewarded and bad deeds punished.

(biology, psychology) The hypothesis that women's taste in men, and subconscious thoughts and behaviors, change throughout the menstrual cycle.

(economics) The idea that policies benefiting the wealthy shall ultimately benefit everybody else.

(rare) Synonym of Out of India theory

A conjecture that expects that all spacetime singularities are enclosed within event horizons.

(economics) A theory attempting to describe how agents spread consumption over their lifetimes, supposing that a person's consumption at a point in time is determined not just by their current income but also by their expected income in future years, which is seen as the driver of change.

(biology) A hypothesis according to which the volumes of brain, cerebrospinal fluid and intracerebral blood add up to a constant sum, so that any change in one is reflected in the others.

Alternative spelling of trickle-down hypothesis

(number theory) A famous open problem in mathematics, the hypothesis stating that, for every finite collection f_1,f_2,…,f_k of non-constant irreducible polynomials over the integers with positive leading coefficients, one of the following conditions holds: (i) there are infinitely many positive integers n such that all of f_1(n),f_2(n),…,f_k(n) are simultaneously prime numbers, or (ii) there is an integer m>1 (called a fixed divisor) which always divides the product f_1(n)f_2(n)⋯f_k(n).