Investment decisions under hidden competition

•We present a model adequate for investment decisions in duopolies under total hidden competition.•We argue the model is useful for investment decision-making under total asymmetric information about competitors.•The value-functions and the optimal entry thresholds are derived.

We present a model adequate for investment decisions in duopolies under total hidden competition. In this competitive context all potential entrants remain unrevealed until they decide to move into the market. The value-functions and the optimal entry thresholds are derived.