Why avoiding conflicts is an effective strategy in marriage? We want to study Model (**) when the spouses avoid conflicts. In this case, the model (**) becomes i=n( 2) + a[(y) 1 v = r2( - y) +al() where I(y) = y if y > 0 and I(y) = 0 if y 0, y'>0; x 0 and I(y) = 0 if y 0, y'>0; x