If your creed is to place that bet, then your code becomes a bit tough to honor, since it is a very high ideal without the comfort of mechanical rules that some churches seem to offer. (religion-online.org)
Adding mechanical rules which prompt you to accelerate or decelerate your purchases, based on market price action, are obviously useful too. (wexboy.wordpress.com)
In CDOs were run by mechanical rules that relied on the ratings of the debts, among other things. (alephblog.com)