Where Forecasting Goes Next?

Forecasting is a key task in financial institutions because of the profound effects economic developments can have on potential profits. And while leading economic indicators might provide a hint as to what the economic future holds, they do not anticipate what the additional effects of powerful economic agents like government policy and the financial markets themselves might be. To try to get ahead of the competition, companies will aim to model more accurately, and with more consideration of possible discontinuities in the markets.

One way to make forecasts more useful though not necessarily better might be to follow the principle of truth-in-labeling used on food packages and elsewhere. We could describe the kind of forecast we are making more accurately. For example, if we are using backtesting, we should say that that is exactly what we are doing and which of two varieties.

One form of backtesting is momentum: the forecast is derived from a view that the past momentum will continue in roughly the same direction often straight line as it has in the past. The other form is regression to the mean: we think things will not go back or up or down, but return to average conditions. This is like a series of coin flips that goes ninety-nine times in one direction, and we think the next event is related to the preceding one.

Alternatively, we can say that our forecast comes from our own insight or novelty, and label it that way so it is known as essentially out of our head and our own creativity or lack of creativity, which will be known in time. Sometimes different techniques like high-frequency forecasting come from this. Or it can come from news and our response to new news. This is not necessarily insider information but news that is not necessarily generally recognized by others a form of forecasting derived from information.

Finally, the most common form of forecasting is waffle: we do benchmark investing or stick to the middle because we do not know what else to do. That is perfectly all right, but we should label it as such. Let us say that is what we are doing, so people can understand what they are getting when they listen to us. Most of the time, a waffle is the right thing to do, but at all times, we can make our forecasts better by correctly labeling them.