Let's say you have trading strategy A and trading strategy B. The performance stats (such as net profit, max DD, profit factor, number of trades) are exactly the same. The only difference is that strategy A holds a position for an average of 4 minutes, while strategy B holds a position for an average of 16 minutes. Intuitively, strategy A is preferable to strategy B, because it's less exposed to the market. But what if you wanted to quantify this? Namely, by which factor strategy A is better than strategy B? 4 times better (16 / 4 = 4)? 2 times better (sqrt(16) / sqrt(4) = 2)?