A theory that stock prices move in the same direction as the hemlines of women's dresses ie. short skirts (1920's and 1960's) were symbolic of bullish markets and long dresses (1930's and 1940's) were symbolic of bearish markets .
HEMLINE THEORY
Meaning of HEMLINE THEORY in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012