The dollar is a medium of exchange. It enables me to trade my labor for beans, gasoline, shoes and dog food. It is the tool I use for financial planning and measurement. But it is like a yardstick made of rubber. Everything I price today has a different value, when measured in dollars, than the same items did in the recent past and than they will in the near future. What yardstick should a prudent financial planner to use? […]