ate (grk)

(Greek tragedy) foolishness or madness

Benford's Law (en)

(aka the first-digit law) in many real-life sets of numerical data, the leading significant digit is likely to be small

Geary–Khamis dollars (en)

a hypothetical unit of currency that has the same purchasing power parity that the U.S. dollar had in the United States at a given point in time (for comparing GDP between countries)

hedonic price index (en)

any price index which uses information from hedonic regression, which describes how product price could be explained by the product's characteristics (e.g., improvements in quality)