Is competition between monotheisms economically important?

Murat Iyigun has a new book out titled War, Peace & Prosperity in the Name of God.  I haven’t read it yet, but Timur Kuran’s blurb seems helpful:

“Challenging many prominent theories of human history, this captivating book shows that competition among the world’s leading monotheistic religions was a more powerful driver of development than competition within them. Cogently argued, insightful, and entertaining throughout, it demonstrates that struggles between Islam and Christianity produced momentous transformations not only in Muslim-governed lands but also in Europe.”