Rihanna’s Anti album vaults to No. 1 on the Billboard 200 chart, marking the diva’s second leader. The set earned 166,000 units in the U.S. in the week ending Feb. 4, according to Nielsen ...

In one chart, the rules in all 50 states about opting kids out of standardized tests. September 19, 2015. Analysis by Valerie Strauss.

The European Union’s new debt rules aim to be tough enough to spur fiscal rectitude, but not so tough as to be unachievable. Running current financial plans through Bloomberg Economics debt ...