In March 2009, Business and Economic Research Limited ("BERL") published “Costs of Harmful Alcohol and Other Drug Use,” a report jointly commissioned by the Ministry of Health and ACC. BERL was asked to measure the costs of drug and alcohol abuse to New Zealand society, but not to evaluate...

We review methods and assess the policy influence of a series of publiclyfunded Cost of Illness studies, mostly published since 1990. Our analysis shows that headline cost estimates, including the influential paper by Collins and Lapsley (2008), depend on an incorrect procedure for incorporating...