The Prohibition Revolving Door: What Alcohol Policy Can Teach Nicotine Regulators

The parallels between alcohol prohibition and contemporary nicotine regulation are uncomfortable for the public health community, which prefers to see itself as advancing beyond the failed policies of the past rather than repeating them. But the parallels are there: a product that a large segment of the population demands, a public health argument for restricting it, a regulatory framework that attempts to eliminate it by making it illegal or effectively inaccessible, a black market that emerges to meet the demand the legal market is forbidden to serve, and a political backlash that threatens the broader regulatory project. The alcohol prohibition story is a cautionary tale about the limits of supply-side regulation when demand is constant. It's a story that the architects of flavor bans, PMTA requirements, and product prohibitions need to read.

The core dynamic of prohibition is straightforward and has been observed across products, cultures, and centuries. When you ban a product that people want, you don't eliminate the demand. You eliminate the legal supply. The demand migrates to the illicit market—a market that, by definition, is unregulated, untaxed, and unaccountable. The illicit market has no age verification, no quality control, no labeling requirements, and no incentive to minimize harm. The product sold on the illicit market is often more dangerous than the product sold on the legal market, because the risks of the legal market (regulatory non-compliance) are replaced by the risks of the illicit market (adulteration, contamination, unpredictable potency). The prohibition of a harmful product can, perversely, increase the harm associated with its consumption.

The vaping flavor bans provide a contemporary case study. When San Francisco banned flavored vaping products in 2018, the intention was to reduce youth vaping. The result, documented by researchers at the University of California, was an increase in youth smoking—the first increase in the city in over a decade—concentrated in the same demographic groups that had previously used flavored vaping products. The mechanism was straightforward: adolescents who could no longer access flavored vapes switched to the products that remained legally available, which were primarily combustible cigarettes. A policy intended to protect youth from nicotine ended up pushing some of them toward the most dangerous nicotine product. Massachusetts, which implemented a statewide flavor ban in 2019, saw similar patterns: cigarette sales increased following the ban, reversing a years-long decline. The flavor ban advocates who dismissed these findings as industry-funded misinformation need to confront the possibility that the data is telling them something they don't want to hear.

The broader lesson from the alcohol prohibition era is that regulatory legitimacy is fragile. The Volstead Act, which enforced Prohibition, was not repealed because Americans decided alcohol was good for them. It was repealed because the gap between the law and the reality of American life became too wide to sustain. Ordinary citizens who had never committed a crime became criminals, the criminal justice system was overwhelmed, organized crime flourished, and the political coalition that had supported Prohibition disintegrated. The parallel for nicotine regulation is not exact—cigarette smoking is not as socially embedded as alcohol consumption was in 1920s America—but the dynamic is similar. When a regulatory framework classifies millions of nicotine users as lawbreakers, when it drives a large market underground, when it creates enforcement challenges that are visibly failing, the legitimacy of the framework erodes. The erosion may be gradual, but once legitimacy is lost, it is very hard to regain.

The alternative to prohibition is not laissez-faire. It is risk-proportionate regulation: a regulatory framework that distinguishes between products based on their relative risk, creates a legal market for lower-risk products with appropriate safety standards and age restrictions, and uses taxation and marketing restrictions to shape consumer behavior rather than prohibition to eliminate it. This is the framework that has been most successful in reducing smoking-related harm—in the UK, Sweden, New Zealand, and Norway—and it is the framework that alcohol policy has, imperfectly, adopted in most countries. Alcohol is regulated, taxed, age-restricted, and subject to marketing controls. It is not prohibited. The result is a legal market that is safer than a black market would be, with a regulatory infrastructure that can enforce age restrictions, quality standards, and labeling requirements. The same framework, applied to nicotine, would yield better public health outcomes than the prohibitionist framework that is currently dominant in the US and much of the WHO-influenced world.

The prohibitionist response to this argument is that nicotine is different from alcohol—that 'there is no safe level of nicotine use,' that the tobacco industry is uniquely evil, that the public health imperative to eliminate smoking justifies measures that would be disproportionate for other products. These arguments have some merit—the tobacco industry is uniquely responsible for a uniquely large death toll—but they don't address the structural logic of prohibition. The logic doesn't depend on the moral qualities of the product or the industry. It depends on the relationship between demand and supply. When demand is constant and legal supply is restricted, illicit supply expands to fill the gap. The moral condemnation of the product and the industry does not alter this logic. It just makes it harder to see.

Shareable insight: Prohibition doesn't eliminate demand. It eliminates the legal supply that regulators can control—and replaces it with an illicit supply that nobody controls. Alcohol prohibition taught this lesson a century ago. Nicotine regulators are learning it again, one flavor ban at a time.