CORY McCARTAN

Posts

Beyond the Brier Score

To evaluate one-shot probabilistic election forecasts, we have to ask: "why model?"

Jul. 6
It’s that time again: presidential election forecasts are cropping up left and right. And they all point in the same direction, with varying degrees of confidence. Until the election, there will be arguments over which model is “best”—arguments completely uninfluenced by the participant’s own political leanings, of course. After the election, assuming we still have a country, a much smaller group of people will want to look back and decide which model ultimately was closest to the actual results.

Crossing the Continent by Train, Twice

Pictures from a near-circumnavigation of the United States.

Aug. 25
Suppose—hypothetically—that you find yourself one evening, early in the second summer of our pandemic, reading your email, when you open up an advertisement for discounted train tickets.

Union Local Size

Big unions’ sizes are driven by a couple large locals

May. 2
Some unions have relatively even local memberships, others have huge disparities in size between their largest and smallest locals. Why? And can we measure it?

Northern Irish Parliamentary Constituencies

How sectarian divisions translate to "independent and impartial" constituency boundaries

Feb. 28
In a place where religious polarization is stronger than political polarization (though they are intertwined), how does the redistricting process look? Are the boundaries fair? Random simulations can provide an answer.

Conditional Forecasts

Explore scenarios and track each candidate's chances of claiming the presidency, depending on which states they win—and by how much.

Nov. 3
Use this tool to game out various scenarios, or to make real-time election-night forecasts for the presidential race as the results roll in.

The Candidates are Rallying Their Bases

Facebook ad spending reveals campaigns’ focus on fundraising over persuasion.

May. 9
Last week, Biden outspent Trump on Facebook by more than a 2-to-1 margin. But per-state spending has little to do with how competitive each state is, and everything to do with how many supportive voters live there.

Not Just Like the Flu

Right now, chances are that someone you know will die of COVID-19.

Mar. 22
All of the numbers floating around about the coronavirus can obscure the one simple fact that we must all remember if we are to be disciplined enough in our social distancing: this pandemic is deadly serious, and if we don’t continue to take drastic action, at an individual and societal level, then someone you know will probably die.

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