- "Physical Decline Rates: Men versus Women," Sports Econommic Review, 2025, intro
- "Estimating Aging Effects in Running Events," (with Edward H. Kaplan), The Review of Economics and Statistics, 2018, intro
- "Estimated Age Effects in Baseball," Journal of Quantitative Analysis in Sports, Vol. 4: Iss. 1, Article 1, 2008, intro
- "Estimated Age Effects in Athletic Events and Chess," Experimental Aging Research, 2007, intro