TY - JOUR AU - Schwarz,Michael AU - Severinov,Sergei TI - Investment Tournaments: When Should a Rational Agent Put All Eggs in One Basket? JF - National Bureau of Economic Research Working Paper Series VL - No. 15136 PY - 2009 Y2 - July 2009 UR - http://www.nber.org/papers/w15136 L1 - http://www.nber.org/papers/w15136.pdf N1 - Author contact info: Michael Schwarz Yahoo! Research 2397 Shattuck Ave Berkeley, CA 94704 Fax: 510/704-2401 E-Mail: mschwarz@yahoo-inc.com Sergei Severinov 997-1873 East Mall Vancouver, British Columbia V6T1Z1 E-Mail: sseverinov@gmail.com AB - In this paper we study "investment tournaments," a class of decision problems that involve gradual allocation of investment among several alternatives whose values are subject to exogenous shocks. The decision-maker's payoff is determined by the final values of the alternatives. An important example of career tournaments motivating our research is the career choice problem, since a person choosing a career often starts by investing in learning several professions. We show that in a broad range of cases it is optimal for the decision-maker in each time period to allocate all resources to the most promising alternative. We also show that in tournaments for a promotion the agents would rationally put forth a higher effort in an early stage of the tournament in a bid to capture a larger share of employer's investment, such as mentoring. ER -