Changes in accumulated retirement savings, particularly in employer-sponsored defined contribution (DC) plan balances, differ by worker’s earnings levels. Earnings shocks, portfolio diversification, and employer contributions to worker’s DC plans affect retirement savings for lower earners...

The NP-hard nature of cardinality constrained mean-variance portfolio optimization problems has led to a variety of different algorithms with varying degrees of success in reaching optimality given limited computational resources and under the presence of strict time constraints in practice. The...

Active fund managers are skilled and, on average, have used their skill to generate about $3.2 million per year. Large cross-sectional differences in skill persist for as long as ten years. Investors recognize this skill and reward it by investing more capital in funds managed by better...