Planetary boundary layer (PBL) Planetary boundary layer (PBL), also called atmospheric boundary layer, the region of the lower troposphere where Earthâs surface strongly influences temperature, moisture, and wind through the turbulent transfer of air mass.
Portfolio optimization tools are useful to assist planners, advisers, and clients in ways to conceptualize the asset allocation problem. But, they should not be relied upon as the primary tool for structuring an investment portfolio.
When there is real money on the line, using a spreadsheet for portfolio optimization seems to me to be penny wise and dollar foolish. If you have other problems with optimization, read the rest of this post. Problem 2: portfolio optimizers suggest too much trading. A major frustration with optimizers is that the turnover can be excessive. Solution