They use the iterative weighted nonlinear least squares regressions or the modified Mishkin test to examine whether investors misprice the ability of net operating assets as well as cash flows and accruals to forecast future earnings for U.S. stock markets during 1964–2002. They find that the level of net operating assets is negatively associated with future earnings. More importantly, they find that U.S. stock markets misprice the persistence of net operating assets and overprice (underprice) the persistence of accruals (cash flows).