Complex sentence: He holds a B.A. in Mathematics from Yale University (1960), a Ph.D. in Economics from M.I.T. (1963), and has previously taught at the University of California, Berkeley.
Split into simpler sentences: He holds a B.A. in Mathematics from Yale University (1960) and a Ph.D. in Economics from M.I.T. (1963). Previously he taught at the University of California, Berkeley.