Lagom is a Swedish word that has no real equivalent in English. Roughly translated it means not too much and not too little. The Swedish way.
To completely understand Sweden you must understand the concept of lagom. The ideal amount. A perfect compromise. As it carries over, not only in terms of material things but in terms of work/home life and show of emotions. It is a concept Swedes are very proud of.
It is a way of thinking completely at odds with the American psyche of excess and limitless bounty. Americans, in general, would see the concept of lagom as a limit put on them. It would be in direct conflict with our "the sky is the limit" mindset. Though, in reality, I think most Americans could probably use a little more lagom and most Swedes a little more reaching for the sky.