Theoretical models imply fund size and performance should be negatively linked. However, empiricists have failed to uncover consistent support for this negative relation. Using a new econometric framework which includes fund-specific sensitivities to decreasing returns to scale, we find a both...

The rate of factor production in the academic research is out of control. We document over 400 factors published in top journals. Surely, many of them are false. We explore the incentives that lead to factor mining and explore reasons why many of the factors are simply lucky findings. The...

We provide practical insights for investors seeking exposure to the growing cryptocurrency space. Today, crypto is much more than just bitcoin, which historically dominated the space but accounted for just a 21% share of total crypto trading volume in 2021. We discuss a wide variety of tokens,...

Harvey, Liu, and Zhu (2016) argue that a large proportion of published asset-pricing factors are likely false. Researchers may try many variables and report only the significant ones, so-called p-hacking. Some recent work challenges the prevalence of p-hacking and argues that the amount of...

Cryptocurrencies refer to a type of digital cash that use distributed ledger - or blockchain technology - to provide secure transactions. These currencies are generally misunderstood. While initially dismissed as fads or bubbles, many large central banks are considering launching their own...

This is the transcription of the American Finance Association's Presidential Address of January 7, 2017. The address is based on the paper "'https://ssrn.com/abstract=2893930' The Scientific Outlook in Financial Economics"

Given the competition for top journal space, there is an incentive to produce “significant” results. With the combination of unreported tests, lack of adjustment for multiple tests, and direct and indirect p-hacking, many of the results being published will fail to hold up in the future. In...

Cryptocurrency refers to a type of digital asset that uses distributed ledger, or blockchain, technology to enable a secure transaction. Although the technology is widely misunderstood, many central banks are considering launching their own national cryptocurrency. In contrast to most data in...

Using a sample that post-dates important regulatory changes in Europe, we show that a buy recommendation from an analyst on a “consensus sell” stock is, on average, sufficient to cause the stock to start to rise in value. Similarly, a sell recommendation on a “consensus buy” stock can...

We examine whether broker recommendations add value in Europe. In contrast to extant research, we focus on a non-U.S. sample that post-dates the important regulatory changes of 2003/4. Our analysis suggests that European brokers' recommendations outperform a standard benchmark during the...