I added some portions from Thomas Sowell’s book, A Conflict of Visions:
Christianity is closely tied to the success of capitalism, as it is the only possible ethic behind such an enterprise. How can such a thing be said? The famed economist/sociologist/historian of our day, Thomas Sowell, speaks to this in his book A Conflict of Visions: Ideological Origins of Political Struggles. He whittles down the many economic views into just two categories, the constrained view and the unconstrained view.
The constrained vision is a tragic vision of the human condition. The unconstrained vision is a moral vision of human intentions, which are viewed as ultimately decisive. The unconstrained vision promotes pursuit of the highest ideals and the best solutions. By contrast, the constrained vision sees the best as the enemy of the good— a vain attempt to reach the unattainable being seen as not only futile but often counterproductive, while the same efforts could have produced a more viable and beneficial trade-off. Adam Smith applied this reasoning not only to economics but also to morality and politics: The prudent reformer, according to Smith, will respect “the confirmed habits and prejudices of the people,” and when he cannot establish what is right, “he will not disdain to ameliorate the wrong.” His goal is not to create the ideal but to “establish the best that the people can bear.”
Dr. Sowell goes on to point out that while not “all social thinkers fit this schematic dichotomy…. the conflict of visions is no less real because everyone has not chosen sides or irrevocably committed themselves.” Continuing he points out:
Despite necessary caveats, it remains an important and remarkable phenomenon that how human nature is conceived at the outset is highly correlated with the whole conception of knowledge, morality, power, time, rationality, war, freedom, and law which defines a social vision…. The dichotomy between constrained and unconstrained visions is based on whether or not inherent limitations of man are among the key elements included in the vision.
The contribution of the nature of man by the Judeo-Christian ethic is key in this respect. One can almost say, then, that the Christian worldview demands a particular position to be taken in the socio-economic realm.* You can almost liken the constrained view of man in economics and conservatism as the Calvinist position. Pulitzer prize winning political commentator, Walter Lippmann (1889-1974), makes the above point well:
At the core of every moral code there is a picture of human nature, a map of the universe, and a version of history. To human nature (of the sort conceived), in a universe (of the kind imagined), after a history (so understood), the rules of the code apply.
A free market, then, is typically viewed through the lenses of the Christian worldview with its concrete view of the reality of man balanced with love for your neighbor;
 See for instance: R.H. Tawney, Religion and the Rise of Capitalism (New Brunswick, NJ: Transaction Publishers, 2000 [originally 1926]); Max Weber, The Protestant Ethic and the Spirit of Capitalism (Mineola, NY: Dover Publications, 2003 [originally 1904]); Rodney Stark, The Victory of Reason: How Christianity Led to Freedom, Capitalism, and Western Success (New York, NY: Random House, 2005); Thomas E. Woods, Jr., How the Catholic Church Built Western Civilization (Washington, D.C.: Regnery, 2005).
 Thomas Sowell, A Conflict of Visions: Ideological Origins of Political Struggles (New York, NY: basic Books, 2007), 27.
 Ibid., 33, 34.
 Walter lippmann, Public Opinion (New York, NY: Freee Press, 1965), 80.