The papers collected in this volume are those presented at the sixteenth Colloquium arranged by the Societe Universitaire Europeenne de Re cherches Financieres (SUERF), which took place in Lisbon in May 1991. The Society is supported by a large number of central banks and commer cial banks, by other financial and business institutions, and by personal subscriptions from academics and others interested in monetary and financial problems. Since its establishment in 1963, it has developed as a forum for the exchange of information, research results and ideas among academics and practitioners in...