Warren Buffett has consistently advised investors to follow a simple approach, diversifying broadly and minimizing costs. In fact, he recommended the trustee that will manage his wife's bequest to stick to a simple 90-10 stock-bond portfolio. Is this a sensible strategy for retirees in general?...

One of the most important decisions retirees need to make is the asset allocation of their portfolios. They can have a static or a dynamic allocation, and simplicity usually favors the former. Warren Buffett recently added another vote for static allocations by revealing that he had advised a...

Individual investors typically determine their asset allocation using investor questionnaires, which can be viewed as black boxes that generate a result without highlighting the benefits and costs of the portfolios considered. This article introduces an asset allocation tool, the gain-pain index...