Has anyone ever made a honest attempt to apply this approach in a systemic fashion. For example, I model many of the economic indicators and have established some rules for the usages of each and their relative impact on the market. However, I have never really taken the time to try and see if any certain set of expectations applied to the models had a significant effect on any of the markets. I focus mainly on Treasuries, but would be interested about how this mentality affects other markets or markets in general.