/biz/ - Business & Finance

>>12392603
so I ran the fast Fourier transformation on my data for inflation adjusted stock prices and got this graph. If it has any meaning at all, it seems that only extremely short waves and extremely long waves have any impact at all. Although, take the short wave thing with a grain of salt, apparently there's some messiness when you do with with a time domain where the waves aren't centered around zero which results in an initial spike.

I should also note that when you look at stock data when adjusted for inflation there is a big qualitative change when we hit the 90s. This qualitative change actually occurs in a lot of economic data besides stock price, including global levels of FDI. A couple explanations include the culmination of globalization and the industrialization of China, the opening up of 2nd world markets in general, and rising accumulation in the neoliberal period going into increasingly complex and risky investment vehicles. Also, tech innovation like the internet and the mobile phone took off around that point.

Someone more knowledgeable with calculus could probably handle this far better than I.