"The key to good decision making is evaluating the available information - the data - and combining it with your own estimates of pluses and minuses." A quote by Brown University economist Emily Fair Oster (1980 - ) that can be used in discussing the use of data in decision making or in discussing the Bayesian idea of updating prior knowledge with data. The quote is contained in an August 9, 2013 essay in the Wall Street Journal written by Dr. Oster.