Many researchers use unit fixed effects regression models as their default methods for causal inference with longitudinal data. We show that the ability of these models to adjust for unobserved ...

VALLEY FORGE, Pa., July 28, 2025 /PRNewswire/ -- Vanguard today expanded its lineup of dynamic asset allocation fixed income model portfolios for advisors. Two new model portfolios, Vanguard Fixed ...

The event study model is a powerful econometric tool used for the purpose of estimating dynamic treatment effects. One of its most appealing features is that it provides a built-in graphical summary ...