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Effective Rank and Dimensionality Reduction: From Complex Disaggregation Back to a Simple World

Tsoulfidis, Lefteris (2022): Effective Rank and Dimensionality Reduction: From Complex Disaggregation Back to a Simple World.

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Abstract

In recent years there is a revival of political economy and discussions are about the near linearities of price rate of profit trajectories. In this article, we argue that the economy’s input-output data are of low effective dimensionality, meaning that there is overfitting of both data and dimensions and that the fundamental behavior of the economy can be tracked down with the use of a low dimensional system.

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