  The Li-Du-Massar quantum duopoly model is one of the generally accepted
quantum game schemes. It has applications in a wide range of duopoly problems.
Our purpose is to study Stackelberg's duopoly with incomplete information in
the quantum domain. The result of Lo and Kiang has shown that the correlation
of players' quantities caused by the quantum entanglement enhances the
first-mover advantage in the game. Our work demonstrates that there is no
first-mover advantage if the players' actions are maximally correlated.
Furthermore, we proved that the second mover gains a higher equilibrium payoff
that the first one.
