Efforts to promote an evolving area of study--entrepreneurship in education--are taking hold in graduate schools across the country, as universities craft programs and courses focused on cultivating school leaders and private-sector developers capable of bringing new ideas, and possibly new products and technologies, to schools. University faculty members and administrators say the study of K-12 entrepreneurship and innovation has had a presence in the postsecondary world for years. But recently, interest in the subject has grown, and it has secured a much more clearly defined place in a number of colleges of education, business schools, and other academic departments.