Sector rotation emerged as a theory from the analysis ... and end of every past business cycle since the middle of the 19th century. Spotting changes in the cycle is harder to do in real time.

Sector rotation is a strategy based on moving money ... Sector-rotating investors often divide the business cycle — the neverending sequence of economic booms and busts — into four phases ...

Just as we put aside shorts and swimsuits to make way for sweaters and wool socks as the weather cools, there are times to favor certain stock sectors over others. But instead of a change in ...