With an agriculture PhD, you could position yourself for careers in high levels, such as agriculture professors, CEOs or investors. Compared to a masters program in the field, this degree level focuses more on specializations in economics.
University of California - Davis
The M.S. degree is both an end in itself and a preparation for the Ph.D. degree. The Master's program includes courses emphasizing applications of economic theory and quantitative methods, along with elective field courses. It is usually completed in a...
University of California - Berkeley
Graduate study in the Department of Agricultural and Resource Economics at Berkeley emphasizes a firm foundation in economic analysis and quantitative...