TY - BOOK ID - 132783821 TI - Monopolistic competition and optimum product diversity : comment AU - Heijdra, Ben J. AU - Yang, Xiaokai PY - 1993 PB - Rotterdam Erasmus University Rotterdam DB - UniCat KW - Economics UR - https://www.unicat.be/uniCat?func=search&query=sysid:132783821 AB - ER -