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Rational expectations |
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Rational expectationsThe 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.Rational expectations Similar MatchesExpectations hypothesis theoriesExpectations hypothesis theoriesTheories 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 ratesExpectations theory of forward exchange ratesA 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. Unbiased expectations hypothesisUnbiased expectations hypothesisTheory that forward exchange rates are unbiased predictors of future spot rates. See Forward parity. Homogeneous expectations assumptionHomogeneous expectations assumptionAn assumption of Markowitz portfolio construction that investors have the same expectations with respect to the inputs that are used to derive efficient portfolios: asset returns, variances, and covariances. Return to maturity expectationsReturn to maturity expectationsA variant of pure expectations theory that suggests that the return an investor will realize by rolling over short-term bonds to some investment horizon will be the same as holding a zero-coupon bond with a maturity that is the same as that investment horizon. Further SuggestionsLocal expectations theoryLocal expectations hypothesis (LEH) |
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