(S.T.D. Pontifical University of St. Thomas Aquinas [Angelicum], Rome, 1991). She teaches and publishes in the areas of Ecclesiology, Theology of the Laity, and Mariology.
Dr Hagstrom's work in ecclesiology focuses on the vocation, mission, and spirituality of the Laity according to the Second Vatican Council. She is interested in how the Laity are the Church in the heart of the world and how they bring the world into the heart of the Church. Ecclesiological research has also brought her to a deep interest in Mariology. The theology of Mary as the archetype of the Church and the hospitality of God are her two avenues of research in retrieving traditional Marian dogma.