When Disclosures Are More Interesting Than the Evidence

When disclosures are more interesting than the evidence.

When Disclosures Are More Interesting Than the Evidence To the Editor: The recent update to the American Heart Association/American Stroke Association (AHA/ASA) Recommendations for the Prevention of Stroke in Patients with Stroke and Transient Ischemic Attacks incorporates new evidence for antiplatelet agents and statins.1 The most interesting aspect of the update is not its content but the aut...

When some are more equal than others.

Friendship Paradox Redux: Your Friends Are More Interesting Than You

Feld’s friendship paradox states that “your friends have more friends than you, on average.” This paradox arises because extremely popular people, despite being rare, are overrepresented when averaging over friends. Using a sample of the Twitter firehose, we confirm that the friendship paradox holds for >98% of Twitter users. Because of the directed nature of the follower graph on Twitter, we a...

When are Women More Generous than Men?*

Previous research on gender differences in behavior has led to seemingly contradictory findings. While some authors report that women are more generous than men, others report the opposite relative patterns of behavior. From data generated by 202 subject pairs, we find that women are more sensitive than men to the costs of generous actions when deciding whether or not to be generous. The factor...

When Are New Firms More Innovative than Established Firms?

We propose a model in which industry conditions influence the relative advantages of new and established firms as innovators. Using a unique data set of commercialization attempts of inventions simultaneously at risk of commercialization by both new and established firms, we find that industry characteristics including the number of firms in the industry, the size of the market, the availabilit...