In online social networks, social information, i.e., content generated and shared by users (e.g., past purchases), can be a substitute for sponsored advertising, which constitutes the network's main source of revenue. When will social information be let to spread freely over the platform? We...

Artificial Intelligence (AI) automates human decisions. Algorithmic pricing, a form of AI, sets prices by a computer. It is now common currency in ride-hailing, travel, drugs, gasoline, online goods---And great price variability characterizes all those settings. However, little is known about...

We develop a methodology for estimating and testing the effect of anomalies in conditional asset pricing models when premia are time-varying. Our method, which builds on the two-pass methodology, is developed for ordinary and weighted least-squares estimation, considering both cases of correct...

Multifactor funds, which offer factor diversification neatly packaged in one product, have a rather short but poor track record; these funds have largely underperformed widely-available broad market funds. This article evaluates the performance of multifactor funds relative to two homemade factor...

This study examines how aggregation in financial reporting leads to information loss using a sample of firms that report individual financial assets. The level of information loss increases with the level of aggregation; however, combining assets with similar risk-factor exposures mitigates this...

Academics, practitioners, and investors at large typically have a preference for making decisions based on a single variable that is supposed to be maximized or minimized. This approach is usually appropriate but it may also be misleading. When selecting an optimal retirement strategy a retiree...