Portfolio performance in 401(k) plans depends on both the investment menu made available by plan sponsors and participants portfolio decisions. We use a unique dataset of nearly 1 million participants in one thousand pension plans to identify key portfolio inefficiencies in 401(k) plans,...

Portfolio performance in 401(k) plans depends on both the investment menu made available by plan sponsors and participants portfolio decisions. We use a unique dataset of nearly 1 million participants in one thousand pension plans to identify key portfolio inefficiencies in 401(k)...

Existing literature documents a significant post-decimalization decline in inter-market quote competitiveness. We show that this result is due primarily to the decline in 100-share NBBO-matching quotes posted by NASDAQ. Particularly, after decimalization, such quotes decline by more than 90%. At...

This paper investigates the effect of cognitive abilities on financial behavior among older adults. Using the longitudinal dataset of the Health and Retirement Study, I find that cognitive abilities significantly affect financial behavior through two channels: ability and self-efficacy. People...

Using a unique dataset on over one million 401(k) traders, we investigate momentum trading in 401(k) plans. We identify momentum traders in each quarter and evaluate how these traders perform. Results indicate the existence of momentum traders. However, there is no evidence that they...

In the United States, many employees can save for retirement by participating in Defined Contribution Plans (DCPs). We propose a tractable framework for calculating the employee’s subjective value of the participation option. The framework allows us to separate multiple benefits of...

In the United States, many employees can save for retirement by participating in Defined Contribution Plans (DCPs). We propose a tractable framework for calculating the employee’s subjective value of the participation option. The framework allows us to separate multiple benefits of...

We propose a dynamic industry equilibrium model for Bitcoin electricity consumption in a general framework, including Bitcoin miners’ optimal entry and exit with technology innovation. By adopting average operating costs as an approximation to the true operating costs, we overcome the...

The first chapter assesses the efficiency and performance of 401(k) investment options offered by a large group of US employers. We show that the majority of plans is efficient compared to market benchmark indexes. Three performance measures underscore the fact that these plans tend to offer a...