To search for eras in a sports league, we utilize time series tests with structural breaks to identify eras in Major League Baseball performance. Using data from 1871-2010, the mean and standard deviation of four different performance measures are examined to test if deterministic or stochastic...

Decisions on whether to retain recent hires are often limited by small sample size. We empirically assess whether uncertainty in employee retention decisions could be significantly reduced by increasing sample size. Using a unique data set from professional tennis matches to measure small sample...