siːkwˈɛnʃəl ˌiːkwɪlˈɪbɹiəm ɪz ɐ fˈɜːðɚ ɹᵻfˈaɪnmənt ʌv sˈʌbɡeɪm pˈɜːfɛkt ˌiːkwɪlˈɪbɹiəm ænd ˈiːvən pˈɜːfɛkt beɪˈiːʒən ˌiːkwɪlˈɪbɹiəm.
Sequential equilibrium is a further refinement of subgame perfect equilibrium and even perfect Bayesian equilibrium.