The bottom line

Youthful startup founders

At least 46 percent of startup founders were younger than 35 when they launched their companies, according to a survey of venture-capital-backed startups worth $1 billion or more. But while young entrepreneurs often found the companies, the presidents and CEOs who run them are typically older, with an average age of 42.

HarvardBusinessReview.org

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High salaries for anesthesiologists

Anesthesiologists make the highest median salary of any U.S. profession, $235,070 a year—slightly more than the surgeons performing the operations, whose average salary is $233,150, according to new Labor Department statistics.

The Wall Street Journal

The myth of too much homework

While parents may complain that kids are overworked, new research shows that the share of 17-year-olds with one to two hours of homework each night dropped from 27 percent in 1984 to 23 percent in 2012. The percentage of students who studied more than two hours a night remained unchanged at 13 percent.

USA Today

More mothers stay a home

According to a Pew Research Center report, the share of stay-at-home mothers is rising after decades of decline, reaching 29 percent in 2012 after hitting an all-time low of 23 percent in 1999. Almost half of these stay-at-home moms are minorities or have no more than a high school education, while more than a third live below the poverty line.

CNN.com

Audiences are down, but box office revenue rises

Audiences are down, but the Motion Picture Association of America says box office revenue rose last year to $10.9 billion thanks to higher ticket prices. In the last decade, U.S. cinemas have hiked the admission price by almost one third, to an average of $8.13 per ticket.

Businessweek.com