Nate Silver loves data. And he knows how to use it. Silver, who left a job as an economic consultant with KPMG and nurtured his love for statistics and baseball, developed a system for projecting player performance and careers. That system, Player Empirical Comparison and Optimization Test Algorithm (PECOTA), is used by baseball business professionals to predict the performance and value of major league players.

Nate Silver is also the guy who accurately predicted the election outcomes in 49 of 50 states in the 2008 U.S. presidential election, and improved his own stats by accurately predicting the election outcomes in all 50 states in the 2012 election. Data, demographics, behavior—and the correct analysis of all of it—are powerful, ...

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