We test whether human capital deterioration is a function of employer decision making with respect to workload allocation. We examine this question in the context of National Football League running backs, where the structure of nonguaranteed employment contracts has the potential to create divergent incentives for franchises and players. We empirically test how employer-assigned workloads impact changes in player productivity and career length. We find that larger employer-assigned workloads result in larger decreases in future productivity. However, players assigned larger workloads tend to have longer careers. These results suggest deleterious physical effects from increased workloads while also implying hiring decisions are partially based on status or exposure effects.
AtkinsonS. E.TschirhartJ.StanleyL. (1988). Revenue sharing as an incentive in an agency problem: An example from the National Football League. RAND Journal of Economics, 19, 27–43.
3.
BaileyC. D. (1989). Forgetting and the learning curve: A laboratory study. Management Science, 35(3), 340–352.
4.
BerriD. J.KrautmannA. C. (2006). Shirking on the court: Testing for the incentive effects of guaranteed pay. Economic Inquiry, 44, 536–546.
5.
BradburyJ. C. (2009). Peak athletic performance and ageing: Evidence from baseball. Journal of Sport Sciences, 27(6), 599–610.
6.
ConlinM.EmersonP. M. (2003). Multidimensional separating equilibria and moral hazard: An empirical study of National Football League contract negotiations. Review of Economics and Statistics, 85(3), 760–765.
7.
ConlinM.OrsiniJ.TangM. C. (2013). The effect of an agent’s expertise on National Football League contract structure. Economics Letters, 121, 275–281.
8.
CorcoranM.DuncaG. J. (1979). Work history, labor force attachment, and earnings differences between the races and sexes. The Journal of Human Resources, 14(1), 3–20.
9.
CoxD. R. (1972). Regression models and life-tables. Journal of the Royal Statistical Society, Series B, 34(2), 187–220.
10.
EdinP.-A.GustavssonM. (2008). Time out of work and skill depreciation. Industrial and Labor Relations Review, 61(2), 163–180.
11.
ErtugG.CastellucciF. (2012). Getting what you need: How reputation and status affect team performance, hiring, and salaries in the NBA. Academy of Management Journal, 56(2), 407–431.
12.
FrickB.PietznerG.PrinzJ. (2007). Career duration in a competitive environment: The labor market for soccer players in Germany. Eastern Economic Journal, 33(3), 429–442.
13.
GlobersonS.LevinN.ShtubA. (1989). The impact of breaks on forgetting when performing a repetitive task. IIE Transactions, 21(4), 376–381.
14.
GoggelK.ZwickT. (2012). Heterogeneous wage effects of apprenticeship training. Scandinavian Journal of Economics, 114(3), 756–779.
15.
GorlichD.de GripA. (2009). Human capital depreciation during hometime. Oxford Economic Papers, 61, i98–i121.
16.
GroothuisP. A.HillJ. R. (2004). Exit discrimination in the NBA: A duration analysis of career length. Economic Inquiry, 42(2), 341–349.
17.
HoangH.RascherD. (1999). The NBA, exit discrimination, and career earnings. Industrial Relations, 38(1), 69–91.
18.
HockenberryJ.LienH.-M.ChouS.-Y. (2008). The impacts of task repetition and temporal breaks in production on human capital and productivity. Journal of Human Capital, 2(3), 303–335.
19.
HockenberryJ. M.HelmchenL. A. (2014). The nature of surgeon human capital depreciation. Journal of Health Economics, 37, 70–80.
20.
KahnL. M. (2000). The sports business as a labor market laboratory. Journal of Economic Perspectives, 14(3), 75–94.
21.
KeeferQ. A. W. (2015). Performance feedback does not eliminate the sunk-cost fallacy: Evidence from professional football. Journal of Labor Research, 36, 409–426.
22.
KeeferQ. A. W. (2017). The sunk-cost fallacy in the National Football League: Salary cap value and playing time. Journal of Sports Economics, 18(3), 282–297.
23.
KimJ. W.KingB. G. (2014). Seeing stars: Matthew effects and status bias in major league baseball umpiring. Management Science, 60(11), 2619–2644.
24.
KripfganzS.SchwarzC. (2019). Estimation of linear dynamic panel data models with time-invariant regressors. Journal of Applied Econometrics, 34(4), 526–546.
25.
LazearE. P. (1981). Agency, earnings profiles, productivity and hours restrictions. The American Economic Review, 71(4), 606–620.
26.
LeedsM.KowalewskiS. (2001). Winner take all in the NFL: The effect of the salary cap and free agency on the compensation of skill position players. Journal of Sports Economics, 2(3), 35–55.
MangeB.PhillipsD. C. (2016). Career interruption and productivity: Evidence from major league baseball during the Vietnam War era. Journal of Human Capital, 10(2), 159–185.
29.
MasseyC.ThalerR. H. (2013). The loser’s curse: Decision making and market efficiency in the National Football League draft. Management Science, 59(7), 1479–1495.
30.
MatvosG. (2014). Renegotiation design: Evidence from National Football League roster bonuses. Journal of Law and Economics, 57, 387–430.
31.
MaxcyJ. G.FortR. D.KrautmannA. C. (2002). The effectiveness of incentive mechanisms in major league baseball. Journal of Sports Economics, 3, 246–255.
32.
MedoffJ. L.AbrahamK. G. (1980). Experience, performance, and earnings. The Quarterly Journal of Economics, 95(4), 703–706.
33.
MincerJ. (1958). Investment in human capital and personal income distribution. The Journal of Political Economy, 66, 281–302.
34.
MincerJ.OfekH. (1982). Interrupted work careers: Depreciation and restoration of human capital. The Journal of Human Resources, 17(1), 3–24.
35.
MincerJ.PolachekS. W. (1974). Family investments in human capital: Earnings of women. Journal of Political Economy, 82, S76–108.
36.
NFLPA. (2011). Collective Bargaining Agreement. Retrieved October 12, 2015 fromhttps://www.nflpa.com/
37.
SandellS. H.ShapiroD. (1978). An exchange: The theory of human capital and the earnings of women: A reexamination of the evidence. The Journal of Human Resources, 13(1), 103–117.
38.
SchulzR.CurnowC. (1988). Peak performance and age among superathletes: Track and field, swimming, baseball, tennis, and golf. Journal of Gerontology, 43, 113–120.
SturmanM. C. (2003). Searching for the inverted U-shaped relationship between time and performance: Meta-analyses of the experience/performance, tenure/performance, and age/performance relationships. Journal of Management, 29(5), 609–640.
42.
VroomanJ. (2012). The economic structure of the NFL. In QuinnK. (Ed.), The economics of the National Football League: The state of the art (pp. 7–31). Springer Science + Business Media.
