Lipstickis a staple item in makeup bags around the world.

According to historical records, this has been true for more than 5,000 years.

Most people use it as a tool for brightening and emboldening lip color.

woman applying lipstick in mirror

However, a number of economists and psychologists are using it to gauge the economy.

PerInsider, the phrase is often attributed to the previous CEO of Estee Lauder, Leonard Lauder.

They found an upsurge in cosmetic product purchases during the years when money was the tightest.

woman smiling holding shopping bags

There are a few theories that take a stab at explain this seemingly impractical trend.

While these researchers didn’t quite hit the mark, some other theories are somewhat more substantiated.

However, there has yet to be any conclusive evidence that explains “the lipstick effect.”

Two women smiling with lipstick