A stochastic path consisting of a series of sequential movements, the direction (and sometime length) of which is chosen at random
(İstatistik) A series of sequential movements in which the direction and size of each move is randomly determined
A series of movements of an object or changes in a variable that follow no discernible pattern or trend
A time series in which the change from one period to the next in the value of the variable in question (e g an asset price) is purely random
Theory that stock price changes from day to day are at random; the changes are independent of each other and have the same probability distribution Many believers of the random walk theory believe that it is impossible to outperform the market consistently without taking additional risk
a stochastic process consisting of a sequence of changes each of whose characteristics (as magnitude or direction) is determined by chance
An economic theory that price movements in the commodity futures markets and in the securities markets are completely random in character (i e , past prices are not a reliable indicator of future prices)
The movements of a variable whose future changes cannot be predicted because, given today's value, the variable is just as likely to fall as to rise 280
A term that describes the idea that changes in share prices are random and unpredictable
A stock market theory that hypothesizes that past prices are of no use in forecasting future price movements The theory maintains that prices move in a random pattern and that they are no more predictable than the walking pattern of a wandering person This directly contradicts technical analysts' use of charts to forecast stock prices
a term used to describe the way the prices of stocks move; the next movement cannot be predicted on the basis of previous movements
A price that is equally likely to rise or fall by the same amount, so, on average, people do not expect it to change (p 174)
An economic theory that price movements in the futures markets and in the securities markets are completely random in character (i e , past prices are not a reliable indicator of future prices)
Theory that stock price changes from day to day are accidental or haphazard; changes are independent of each other and have the same probability distribution Many believers in the random walk theory believe that it is impossible to outperform the market consistently without taking additional risk