Stability analysis of price system based on stochastic model

Price system was analyzed by a nonlinear stochastic dynamic model with the supply and demand factors. This model converged to a process in probability. Then the stability of the system was analyzed by the result of drift coefficient and diffusion coefficient of the process. Numerical simulation results of the stationary probability density with different conditions were shown. It can be concluded that the stability of the system varied as the parameters varied. Finally, the influence of parameters on the stochastic bifurcation was analyzed.