In this article I analyze strategic investment under uncertainty in a
new market, where firms face a tradeoff between commitment and flexibi
lity. The model predicts asymmetric equilibria under fairly general co
nditions, even though firms are ex ante identical and have symmetric o
pportunities to enter the market. In equilibrium, one firm commits to
early investment and the other firm follows a wait-and-see strategy. I
n the ex post outcome, firms end up with asymmetric sizes if the marke
t profitability turns out close to, or lower than, expected; firms end
up in symmetric position if the market turns out highly profitable. I
f uncertainty is small, the model yields (approximately) Stackelberg o
utcomes.