Pickle Index for population estimation

Posted to Statistics  |  Tags: ,  |  Nathan Yau

Pickle indexAs China moves forward with a plan to move 250 million people to cities, officials developed a need to keep track of how many people are still in rural areas. The problem was that local data from the provinces is unreliable, so instead they use what they call a “pickle index” which banks on the correlation between the amount of pickles eaten by rural residents and population.

According to the South China Morning Post, the country’s National Development and Reform Commission has found that sales of zha cai, a pickled mustard tuber, provide a better guide to population flows than often unreliable provincial statistical data. As an unnamed planner explained to the Economic Observer:

“Under normal circumstances, urban consumption levels of convenience foods such as instant noodles and pickled mustard is essentially constant. Therefore, we can assume that volume changes are mainly caused by a city’s floating population.”

Maybe we can work out a hot dog index for the US. [via Waxy]

Favorites

The Most Unisex Names in US History

Moving on from the most trendy names in US history, …

Where Bars Outnumber Grocery Stores

A closer look at the age old question of where there are more bars than grocery stores, and vice versa.

Marrying Age

People get married at various ages, but there are definite trends that vary across demographic groups. What do these trends look like?

19 Maps That Will Blow Your Mind and Change the Way You See the World. Top All-time. You Won’t Believe Your Eyes. Watch.

Many lists of maps promise to change the way you see the world, but this one actually does.