需求系统的分形研究

A Study on the Systems of Demand Using Fractal Theory

以关联函数、关联积分为工具，研究了需求系统的分形特征，并对需求系统的时间序列进行了分形分析，寻找出无标度区，计算出分维数，进而发现无标度区的位置、分维数的大小等，可作为反映经济波动的定量指标。

Using correlation function and correlation integral as tools.The fractal characteristics of the time series of demand systems in authors previous work are revealed,the nonscale intervals are finded out,and the fractal dimensions are calculated.Further study shows that the position of nonscale and the size of the correlation dimension all have certain economic meanings and may be taken as quautitative indices for reflecting the economic fluctuation.