The husband should wish to seek advice and council from his wife prior to making decisions on important matters. But, he should remain head of the household, and after taking into consideration his wife's thoughts on a matter, he alone makes the final decision. And the wife should back him up in decisions he makes.
Too often in today's world we see, even in Traditional marriages, the wife "wearing the pants". This leads to an emasculation of her husband, among other problems. Also, children in the home need to see this interaction between their parents. This is one way the children will learn appropriate roles for a husband and a wife.
"Being subject one to another, in the fear of Christ. Let women be subject to their husbands, as to the Lord: Because the husband is the head of the wife, as Christ is the head of the church. He is the saviour of his body. Therefore as the church is subject to Christ, so also let the wives be to their husbands in all things. Husbands, love your wives, as Christ also loved the church, and delivered himself up for it..."
Epistle of Saint Paul to the Ephesians V, 21-25
I would say it is very helpful for husbands and wives to prayerfully read the Encyclical of Pope Pius XI on Christian Marriage: CASTI CONNUBII