A recent paper “Rebalancing for Tax-Deferred Accounts: Just Do It, Don’t Worry How” in the FPA Journal discusses 21 different technique of re-balancing and tries to quantify which technique is better. According to the authors, it turns out that,
… given our assumptions, none of the techniques tested here are clearly superior when evaluated solely on the basis of average risk and return. The decision to employ one technique over another should ultimately be driven by how closely you want to adhere to the strategic targets that have been established for your client.
The authors’ conclusion was “Just do it, don’t worry how”.