 When it comes to money buying happiness, they say more now is better. That, according to new research from a senior fellow at the Wharton School, who had argued that the correlation between wealth and well-being does not plateau once incomes reach a certain point. Matthew Killingsworth, who studies the causes of human happiness, said both millionaires and billionaires are significantly happier than other people. How about that? Ms. Shedlock, investment analyst with us this year. Do you agree with that, Ms.?