For a low-maintenance mechanical strategy, this is attractive.

FORBES: SDOG: A New Dog for an Old Trick

Tactical asset allocation has a higher maintenance cost than a fixed allocation and this puts the strategy at a disadvantage from the start.

FORBES: Investment Principle Matters to Principal

If diversification is a must-have strategy for your investable assets, then consider minimizing maintenance and transaction costs.

FORBES: The Pitfalls Of Diversification