Divorce and marital instability are commonplace, but how do happy marriages become unhappy? How do marriages develop and change? In this book, leading researchers present recent research and theory that addresses these questions. Unlike previous books on marriage, which tend to focus on simply describing the differences between happy and unhappy couples, this book focuses on how marital dysfunction develops among newlywed couples. This information will be valuable as programs are devised to prevent marital discord and instability.