On which illicit drug is the greatest total amount of money spent in the United States?

• A. Cocaine
• B. Ecstasy
• C. Marijuana
• D. Methamphetamine

Answer: (A)

Think about total spending as market size in dollars: it grows with how many people use a drug and how much money is spent per use. Cocaine tends to have a high price per dose on the street, so each user's spending adds up quickly. Even if marijuana is used by more people, its lower price per use means the overall dollars spent on marijuana can be smaller than the dollars spent on cocaine when you sum across all users and uses. Ecstasy and methamphetamine can be costly, but they typically have smaller user bases or usage patterns that don’t push total spending as high as cocaine in many datasets. So for this question, cocaine often comes out on top because of the combination of relatively high per-use cost and substantial demand. Keep in mind that data can vary by year or dataset, and marijuana generally leads in terms of prevalence, which can shift rankings for total expenditures.