Why You Should Throw Books Out by Tyler Cowen:

My wife and I have periodic arguments about throwing books out. I love to throw books out. I treat that as a sign of my love of books and -- even more -- my love of readers.

But isn't it a horrible thing to throw out books? It just doesn't feel right. Shouldn't you donate the books somewhere? I think not, at least in many cases.

Here's the problem. If you donate the otherwise-thrashed book somewhere, someone might read it. OK, maybe that person will read one more book in life but more likely that book will substitute for that person reading some other book instead.

So you have to ask yourself -- this book -- is it better on average than what an attracted reader might otherwise spend time with? No I'm not encouraging "censorship" of any particular point of view, but even within any particular point of view most books simply aren't that good. These books are traps for the unwary. A lot of books don't make the cut of "above average to those readers they will attract" and of course since you've spent some time with the volume you ought to be in a position to know. (But note the calculation is tricky. Sometimes a very bad book can be useful because it might appeal to "bad" readers and lure them away from even worse books. Please make all the appropriate calculations here.)

The worst thing you can do is to give such a book to a friend or family member. You are tempting them, but with mediocrity.

So all you altruists out there, ready your trash can and exercise your elbow. See if you can toss a book into the bin with one fell swoop from across the room. The love of humanity demands it.

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Tyler Cowen, Discover Your Inner Economist, economics, practical, incentives, signals, markets, Penguin Books, books