Japan fertility rate forecasts versus reality

It’s hard to predict the future, especially when humans are involved. Oftentimes, there are just too many variables to control for to estimate accurately. In the chart above from the Washington Post Wonkblog, Japan’s fertility rate is plotted against various forecasts over the years, and you see forecasts headed upwards, but in reality it decreased consistently since the 1970s. This is based on work from Katagiri, et al (pdf).

See also a similar porcupine chart from Amanda Cox in 2010 that compared US deficit against forecasts.


Watching the growth of Walmart – now with 100% more Sam’s Club

The ever so popular Walmart growth map gets an update, and yes, it still looks like a wildfire. Sam’s Club follows soon after, although not nearly as vigorously.

Pizza Place Geography

Most of the major pizza chains are within a 5-mile …

How We Spend Our Money, a Breakdown

We know spending changes when you have more money. Here’s by how much.

Shifting Incomes for American Jobs

For various occupations, the difference between the person who makes the most and the one who makes the least can be significant.