The discipline of Law and Economics seeks to scientifically analyze law. This Article uses the social norms aspect of the Law and Economics field to examine marijuana prohibition in order to show that policymakers should consider changing the law to better account for social norms. First, the...

The 'friendship paradox' (Feld1991) refers to the fact that, on average, people have strictly fewer friends than their friends have. I show that this over-sampling of the most popular people amplifies behaviors that involve complementarities. People with more friends experience greater...

We characterize dynamic rational addiction to a harmful product by an informed individual who is connected to a network of users of the addictive product. The network harms the individual and imposes peer pressure on her to consume the addictive product. The network contributes to the state...