A simple random walk is a discrete-time stochastic process that describes a path generated by a sequence of random steps. Starting from a defined point, in this case, the origin, each step is taken ...

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. For a simple random walk, the best ...

We investigate two types of random walks with a fluctuating probability (bias) in which the random walker jumps to the right. One is a ‘time-quenched framework’ using bias time series such as periodic ...