Imperial. California - Those ubiquitous researchers are at it again.  This time they seem to have found the secret to a happy marriage.  It's all about husbands being nice to their wives, says the Association of Mature American Citizens.

Experts at Rutgers University in New Jersey, the Universities of Chicago and California and up north at the University of Calgary appear to agree that when the wife is happy, the husband is happy, too.

Rutgers' Professor Deborah Carr says it all comes down "to the fact that when a wife is satisfied with the marriage she tends to do a lot more for her husband, which has a positive effect on his life."  Calgary's Dr. Susan Boon, an expert on interpersonal relationships, says both spouses need to remain positive if their marriage is to be successful.

Sociologist James Iveniuk in Chicago agrees.  ""Wives whose husbands show higher levels of positivity reported less conflict," he says.  And, psychologist Lian Bloch at UC Berkeley noted that his study showed that "a stable union depends on the wife's happiness.'