Monday, September 27, 2004

Debunking the protection myth 

The folks at Sabernomics, a terrific blog on the economics of baseball, have done a very comprehensive study on the effect that "protection" -- having a good hitter coming up behind you -- has on a hitter, using the Retrosheet play by play data for 1984 through 1992.

The complete study can be found here, and has a lot of eye-glazing material. The summary of their 18 page paper:

"The results lead us to not only reject the protection hypothesis, but also we find evidence that good on-deck hitters actually harm the hit and power probabilities of the current batter. "

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