A study asks: What's a church's economic worth?

What is the dollar value of a marriage saved? A suicide averted? An addiction conquered? A teenager taught right from wrong?

In short: What is a church's economic worth to the community it serves?

Last summer, a University of Pennsylvania professor and a national secular research group based in Center City took up that seemingly unanswerable question. With a list they devised of 54 value categories, they attempted to calculate the economic "halo effect" of a dozen religious congregations in Philadelphia - 10 Protestant churches, a Catholic parish, and a synagogue.

They added up the money generated by weddings and funerals, festivals, counseling programs, preschools, elder care. They tallied the salaries of staff and the wages of roofers, plumbers, even snow shovelers. They put dollar signs on intangibles, too, such as helping people find work and teaching children to be socially responsible.

They even measured the diameter of trees on church campuses.

The grand total for the 12 congregations: $50,577,098 in annual economic benefits.

The valuation for 300-member Gloria Dei (Old Swedes') Episcopal Church in Queen Village, for instance, was a middle-of-the-road $1.65 million. By contrast, the figure for Visitation of the Blessed Virgin Mary Roman Catholic parish in Kensington, with 7,000 congregants, a parochial school, and a community center, was $22.44 million.

The numbers, culled from clergy and staff interviews, "just blew us away," said Robert Jaeger, executive director of the research group Partners for Sacred Places.

The study is not yet published. When it is, the robust sums are likely to be challenged, predicted lead author Ram Cnaan, a Penn professor of social policy.

Some valuations were drawn from existing academic research, such as $19,600 for pastoral counseling that prevents a suicide and $18,000 for an averted divorce. Cnaan himself arrived at other values - for example, $375 on "teaching pro-social values" to a young child.

"Look, it's quite possible that someone will say we calculated all wrong" in some categories, he said. But, he added, he welcomed scrutiny.

He and the 21-year-old Partners have well-established reputations in the valuation of houses of worship. In 1998 they began a landmark research series on urban congregations' services to the poor (worth an annual average of $140,000). It led George W. Bush in 2000 to create the White House Office of Faith-based and Community Initiatives, which continues in the Obama administration.