Perhaps Lord Melchett underestimates the intelligence of the consumers.
Often the medical history alone underestimates the severity of coronary heart disease.
Visual censuses unless undertaken in entirely open country are notorious for producing significant underestimates of the true population number.
Consequently, as is now well understood, growth accounting systematically underestimates the contribution of innovation to economic growth.
The conclude that this study suggests that few patients take medications as prescribed and that self-report substantially underestimates medication noncompliance.