As of 2005, just before the onset of the financial crisis, the Harvard econometricians James Stock (now a member of President Barack Obama’s Council of Economic Advisers) and Mark Watson concluded that the advanced economies had become both less volatile and less correlated with each other over the course of the preceding 40 years.
En 2005, justo antes de la llegada de la crisis financiera, los econometristas de Harvard, James Stock (actualmente miembro del Consejo de asesores económicos del presidente Barack Obama) y Mark Watson concluyeron que las economías avanzadas se habían tornado menos volátiles y correlacionadas entre sí durante los 40 años previos.