These studies never seem to have the troubles that other scientific studies have, repeat-ability, outliers or biases at picking companies. If you pick the best

These studies never seem to have the troubles that other scientific studies have, repeat-ability, outliers or biases at picking companies. If you pick the best of a wider selection, the result is to be better of course, but even then, some companies should screw up just because - the noise of a complex world, where good employees might not overcome bad management or bad circumstances.