|
|
|
|
|
|
|
|
|
Rational expectations
| Глоссарий экономических терминов |
The idea that people rationally anticipate the future and respond today to what they see ahead. this concept was pioneered by nobel laureate, robert e. lucas, jr.
|
|
Expectation, английский
- Математическое ожидание.
- Generally, the anticipation of something to occur at a certain time or place or in a certain way. in statistics, the probability of an event in a universe inferred from the relative frequency of observing that event in a sample.
Expectation (of a random variable); mean (of a random variable), английский
Expectation of life, английский
Вероятная продолжительность жизни
Expectation theory, английский
Expectation, expected value, английский
The expected value of a random variable is the long-term limiting average of its values in independent repeated experiments. the expected value of the random variable x is denoted ex or e(x). for a discrete random variable (one that has a countable number of possible values) the expected value is the weighted average of its possible values, where the weight assigned to each possible value is the chance that the random variable takes that value. one can think of the expected value of a random variable as the point at which its probability histogram would balance, if it were cut out of a uniform material. taking the expected value is a linear operation: if x and y are two random variables, the expected value of their sum is the sum of their expected values (e(x+y) = e(x) + e(y)), and the expected value of a constant a times a random variable x is the constant times the expected value of x (e(a×x ) = a× e(x)).
Expectation, expected value., английский
The expected value of a random variable is the long-term limiting average of its values in independent repeated experiments. the expected value of the random variable x is denoted ex or e(x). for a discrete random variable (one that has a countable number
Expectational inflation, английский
Инфляция, вызванная ожиданием роста цен
Expectations hypothesis theories, английский
Theories of the term structure of interest rates, which include the pure expectations theory; the liquidity theory of the term structure, and the preferred habitat theory. these theories hold that each forward rate equals the expected future interest rate for the relevant period. these three theories differ, however, on whether other factors also affect forward rates, and how.
Expectations theory of forward exchange rates, английский
A theory of foreign exchange rates that states that the expected future spot foreign exchange rate t periods from now equals the current t-period forward exchange rate.
Rational, английский
- Рациональный
- Разумный; целесообразный; рациональный
Rational analysis, английский
Rational approximation, английский
Рациональная аппроксимация; рациональное приближение
Rational behavior, английский
Целесообразное поведение
Rational data systems, английский
Rational expectation, английский
Обоснованное ожидание
Rational horizon, английский
See horizon.
Rational integral function, английский
Рациональная интегральная функция
Rational monotonicity, английский
Rational monotonicity is a variant of monotone logic that allows one to retain the existing conclusions whenever new information cannot be negated by existing conclusions. see also: monotone logic.
Rational operation, английский
Рациональная работа
Rational polynomial coefficient, английский
Anticipate, английский
- Ожидать
- Порочить новизну; отрицать новизну (изобретения)
- Опережать; упреждать; предупреждать; предвидеть; предусматривать
|
Mean reversion, английский
The idea that stock prices revert to a long term level. hence, if there is a shock in prices (unexpected jump, either up or down), prices will return or revert eventually to the level before the shock. the time it takes to revert is often referred to as the time to reversion. if the process is very persistent, it might take a long time to revert to the mean. the key difference between a mean-reverting process and a random_walk is that after the shock, the random_walk price process does not return to the old level.
Time value of money, английский
The idea that a dollar today is worth more than a dollar in the future, because the dollar received today can earn interest up until the time the future dollar is received.
|
|
|
|
|
|
|
