- Is It a Time Average?

In economics we consider the individual itself as fundamentally nonargoti or because we have a system. But my question was more towards thee implication of choice, and the reason why arpecodiciy breaks. Some situation needs to be analyzed in as, as stephen said, a a time average, and some other situations need to be analyzed as vertical average. i know from my experience in training that people who look at a er, and my anecdote trading as only a vertical average, ok, go bust.