Fact-checking Blogger Economics

The Internet should be a transformative technology for political debates; in a matter of seconds you can verify or reject nearly any conjecture, relieving bloggers from the embarrassment of posting complete nonsense. Unfortunately, few ideological adherents avail...

Testosterone and Cognitive Function

Finding one article on pre-natal exposure to testosterone and giftedness, I figured that this was probably only one paper showing a tentative connection. Then I found all of the other papers. Martin Mrazik, Stefan Dombrowski. The Neurobiological Foundations of...

Just What Is Selection Bias?

While reading a bit about KIPP schools, a compensatory education program for minority students, I found a report that has some interesting, adjacent paragraphs: [The KIPP Performance gains do] not appear to be attributable to a selective admissions process. KIPP...

Economic Notes On Manufacturing

The US has been shedding manufacturing jobs since about 2000. ( Not 1970 as many people believe . )    But, a capital spending report for the same period shows that capital spending has not dropped:   Furthermore, manufacturing revenue has been climbing over the...

Educated Into A Corner

Here is an excellent comment to an article in the Chronicle of Higher Education. The commenter, mark_r_harris,  is a teacher in South Korea who explains what happens when, as the Obama administration would like, every student in a country graduates from college. On 60...

Positive commands

Here’s a good example of how to turn a negative into a positive. Much more poetic than ” keep out”. Posted via email from Eric’s...

The Unknowable Becomes Known

There are certain dangers of speculating on the limits of science. From  What it Means to be 98% Chimpanzee, by  Jonathan Marks, referring to the possibility of humans inbreeding with Neandertals: Could an extinct form of near-humans have interbred with us? Not only...

The Suburb Versus the Nation

The United Nations recently released its 2010 Human Development Report, ranking Norway as the most developed country in the world, and inviting a week of comparisons between the enlightened Norway and the dysmal, fourth-ranked United States. Such comparisons are an...

Kid Powered Teacup

This teacup in the children’s playground in Golden Gate Park accelerates when you sit in it. I’m not sure how it works, but I suspect it has a screw, a ratchet and a spring to lift it up, but it doesn’t obviously screw downward under weight. Posted...