investment principles

Checking the weather? Looking at a map of the world to plan your next vacation? Guess what—you're using a model. While models can be useful for gaining insights that can help us make good decisions, they are simplifications of reality. One example of a model is a weather forecast. Using data on current and past weather conditions, a meteorologist makes a number of assumptions and attempts to approximate what the weather will be in the future. This model may help you decide if you … [Read more...] about The Reality of Models