How did Andrew Carnegie use vertical integration to dominate the steel industry?

Carnegie also created a vertical combination, an idea first implemented by Gustavus Swift. He bought railroad companies and iron mines. If he owned the rails and the mines, he could reduce his costs and produce cheaper steel. ... All these tactics made the Carnegie Steel Company a multi-million dollar corporation.

Explanation:

Madame Loisel is a woman who is not content with what she has. She is more concerned about appearance and lusting for things that are above her means. She knows her limitations but refuses to stay in it, rather preferring to go the extra mile for that which she thought could be hers.

Madame Forestier seeks the affluent life like Loisel, but she knows her limit and stays within it. She is a woman who cuts her coat to her size by making imitations of real jewellery she wanted but knew she could not get.