Economic variables measured by economic agencies and institutions present a unique source of valuable information for a scientist with a background in physics. Instead of building thought experiments based on shaky assumptions, as economists usually do, physicists first look into the data and try to find regular behavior, which can be described by simple functions/equations. Such regular behavior allows predicting the future behavior of economic (and physical) variables, and this is what we do in hard sciences. The evolution of the consumer price index (CPI) in the USA is one of such variables we study since the mid-2000s. In 2008,we published a paper on the presence of long-term sustainable trends in the differences between various components of the CPI in the USA....
Assumes ergodicity, but otherwise interesting.
Economics as Classical Mechanics
Revisited CPI data confirm our prediction - energy prices will not be growing faster than other goods and services in the next ten yearsIvan Kitov
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