Department of Physics2024-11-092020978-3-030-27672-0978-3-030-27671-310.1007/978-3-030-27672-0_22-s2.0-85079155150http://dx.doi.org/10.1007/978-3-030-27672-0_2https://hdl.handle.net/20.500.14288/7567In recent years, there has been great interest in the application of wavelet analysis in a variety of disciplines to investigate the characteristics of chaotic systems. The scale index is a wavelet-based method introduced in 2010 that has been used effectively in determining the degree of aperiodicity, hence chaotic characteristics of a signal. In this chapter, we will discuss previous works involving Scale index method including our works. We will also mention some social and economic systems that this method can potentially be applied.ManagementMathematicsInterdisciplinary applicationsSocial sciencesMathematical methodsScienceConference proceeding6564543000029686