Junk Charts

Light entertainment

A co-worker offered this one:

From here.

Scale restoration

The original graph threw us off our sense of scale.  It seemed to be saying all these oil companies are roughly the same size but one grew much faster than the others.  The red color and the setting off of the data above the title of the chart seemed to announce some important find.

The junkart version on the right reversed everything to our normal sense of scale.  It is a version of the bumps chart, one of my favorites.

So we find that Total is the smallest of these oil companies, about half the size of ExxonMobil -- you wouldn't know that from those abysmal bubbles!   Adding to the problem is that the growth data is used to sort the companies while the actual production data is hidden in the data labels.

Total is indeed growing faster but BP is not far behind.  The fall of ExxonMobil and Royal Dutch Shell is equally intriguing.


Reference: "Total, the French Oil Company, Places Its Bets Globally", New York Times, Feb 21, 2009.

Eternal optimist

Chris P pointed us to the "Financial Comeback" calculator, surely a well-meaning joke from the folks at the Times.  Here is how one gets to make a 40% loss back in just six years!


Surely, someone has to tell them about simulation.  They have to assume a probability distribution on the annual returns, and show us some sample paths.  Using the average annualized historical return in essence wipes out all variability and no wonder it's smooth sailing upwards.  Eternal optimist.  

Here is Chris' comment:

The bad news is that the range of values it offers does not include the return on the market from last year (-31% to -36%).  I guess they are optimistic.

The interactive features of this chart, however, impressed me.  The smooth adjustment to the chart as one slides the control, including the automatic choice of appropriate axis labels, is very nice indeed.

Okay, they want to trademark the name of the calculator so perhaps this is serious.

Reference: "Calculate your financial comeback", Jan 6 2009.

Green panels

This panel chart appeared in an article about solar panels in Business Week.  Not understanding this one at all.

Reference: "Solar: first a shakeout, then a boom", Business Week, Jan 12 2009.