Open Thread, April 27-May 4, 2014

NancyLebovitz

You know the drill - If it's worth saying, but not worth its own post (even in Discussion), then it goes here.

And, while this is an accidental exception, future open threads should start on Mondays until further notice.

You know the drill - If it's worth saying, but not worth its own post (even in Discussion), then it goes here.

And, while this is an accidental exception, future open threads should start on Mondays until further notice.

Some policy changes are hard to measure. Some are controversial to measure — you can measure them, but people will call you nasty names for doing so.

I expect that anyone who measured and forecast the health effects of reduction in lead pollution, back in the days of lead paint and leaded gasoline, was probably called "anti-business" or worse. Fortunately, they won anyway, and the effects are indeed measurable — in reduced cases of lead poisoning, and apparently in increased IQs of city residents.