From Will Wilkinson:

I found this little thought experiment, inserted by a Forbes editor into an interview with Amartya Sen, pretty peculiar.

[Note: In the book, Sen describes a problem of divergent views on justice in which you have one flute and three children who want it. One child wants the flute because she knows how to play it, the second one wants it because he is poor and doesn’t have toys, and the third one says she made the flute, so she should get it. Who do you give it to?]

This is no knock against Sen, since there’s probably more context in the book. But this is not really such a puzzling question, is it? The correct answer is: It all depends on how “you” ended up with the flute!

Is the flute yours because you provided the materials (which were yours) and paid the kid who made it? If so, you can give it to anyone you want, or you can keep it. It’s yours! Did you steal it from the kid who made it? Then you should give it to the kid who made it. It’s hers! You’ve got no right to redistribute her flute.