Article: OPINION: Ohio and the law of diminishing returns: Republicans want you to eat another piece of pie.

Byline: Michael Douglas

Sep. 3--You wouldn't expect an economics class to prove memorable all these years later. I'll never forget the day a diminutive professor explained the law of diminishing returns. His rendition was hardly original. It was full of zest, the delivery precise in its comic timing, the lesson enduringly clear. Think of a pie, your favorite pie. That first piece? Scrumptious. The second? Delicious, too. The third? Fourth? Fifth? Soon enough, the pie begins to lose its sparkle, and it isn't simply that you are feeling full. The law of diminishing returns takes effect. That last piece lacks the value of the first. The charm of the ...

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