Just run your business as if: (1) you own 100% of it; (2) it is the only asset in the world that you and your family have or will ever have; and (3) you can't sell or merge it for at least a century. As a corollary, we tell them they should not let any of their decisions be affected even slightly by accounting considerations. We want our managers to think about what counts, not how it will be counted.
