Felix Salmon

Eisenhower charts of the day

January 21, 2011

My fabulous editor, Jim Ledbetter, had a party a couple of days ago for his new book about Dwight Eisenhower. He asked for the most famous passage from Eisenhower’s 1953 “Chance for Peace” speech to be turned into updated charts, so here you go:

Chart of the day: California taxes

December 7, 2010

ARJTurgot2 left this comment on my chart of US taxes:

You are, of course, going to follow up this chart with a second one that comprehensively reflects the changes in State and Local taxes, especially including sales taxes, that have changed since 1950. And that data is going to include things like registration and usage fees, especially gasoline, telecommunications and sin taxes on things like liquor and cigarettes. I understand that is going to vary widely from state to state, so two, perhaps, should be instructive: say New York and California?

Volume-based stock chart of the day, flash crash edition

September 24, 2010

Here’s the volume-based stock chart you’ve all been waiting for: the one for May 6, the day of the flash crash. Since the big spike in volume was concentrated at the end of the day, in the final hour of trading, the time-based chart squeezes a huge amount of activity into a relatively small horizontal space. The volume-based chart gives the crash a bit more space.

The new type of stock chart

September 22, 2010

A couple of weeks ago, I wondered whether it was possible to see what a stock graph would look like if it split up the x-axis according to volume rather than according to the time of day. After all, when trading is concentrated at the beginning and end of the day, those are the areas worth concentrating on, right?

Adventures in probability, market forecasting edition

September 20, 2010

Carl Richards has a cute graph:


The basic idea here is right. And in fact Richards understates, in his graph, just how bad things are when it comes to market forecasts: his graph curves the wrong way.

Adventures in information design, WSJ edition

September 13, 2010

Last week, Justin Lahart presented an interesting thesis in the WSJ:

For American business, it has become a two-track economy.

While global players like industrial conglomerate 3M Co. and burger giant McDonald’s Corp. are getting ever-bigger boosts from their operations in fast-growing economies like China and Brazil, companies dependent on the U.S. market are hemmed in by recession-scarred consumers who are hesitant to spend.

A new kind of stock-price chart

September 10, 2010

I love Kristina Peterson’s profile of Briargate, an algorithmic prop-trading firm (it’s an anagram of “arbitrage”) which has more or less given up on trading during the middle of the day.

Money supply chart of the day

July 9, 2010

If Matt Yglesias can wonk out with meditations on the velocity of money, then I can wonk out with a chart:

European bond chart of the day

May 10, 2010

Thanks to Johannes Bruder of Hamburg University for sending me this intriguing chart: