Sacred and Secular (Cambridge University Press, 2004), Norris and Ronald Inghelart, who also refute the free market hypothesis of American religiosity. 
 
Religious Views and Beliefs Vary Greatly by Country - According to the latest Financial Times/Harris Poll- According to the latest Financial Times/Harris Poll, while most Americans believe in God, only 36% attend a religious service once a month or more,  .
 
PEW Trends in Political Values and Core Attitudes: 1987-2007, The 2002 Pew Global Attitudes Project, the 2004 BBC/ICM, the 2004 BBC/ICM

2005 Eurobarometer – Social Values, Science and Technology and International Social Survey Program Religion I & II (ICSPR), a document concerning global religiosity and secularization which shows the adverse impact upon the former by higher education and income levels.

Tom Smith and Seokho Kim discuss the NORC data showing that Amerofaith is declining as the nonreligious rise in “The Vanishing Protestant Majority”, GSS Social Change Report 14, 2004

“The Decline of Religious Identity in the United States”, Institute for Jewish & Community Research, 2004 - Sid Groeneman and Gary Tobin explore the demographic factors behind the decline, while Michael Hout and Claude Fischer look at the socio-political aspect in “Why more Americans have no religious preference: politics and generations”, American Sociological Review, 2002  

The high levels of stress resulting from high levels of social disparity and insecurity are discussed in R. Sapolsky, Sick of poverty. Scientific American (6/2005); R. Wilkinson The Impact of Inequality: How to Make Sick Societies Healthier. New Press, 2005); M. Marmot The Status Syndrome, Bloomsburg Publishing, 2004
 
Adelle Banks, “Southern Baptists address drop in baptism numbers”, The Washington Post, 6/18/05

P. Marler and C. Hadaway, Testing the Attendance Gap in a Conservative Church, Sociology of Religion, 1999, 60:175

S. Presser, Data collection mode and social desirability bias in self-reported religious attendance, American Sociological Review, 1998, 63:137 show that actual church attendance is much lower than indicated in surveys. 

John Judis and Ruy Texeira, The Emerging Democratic Majority, 2002

Also see Sager, R. Purple, mountains, Atlantic Monthly, 298(1), 37-41,2006  

Gallup, 2005, Religion in America: Who has None?

Gallup, 2006, Twenty-Eight Percent Believe Bible is Actual Word of God.
 

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