This paper investigates the efficiency of the two major stock indexes of the Iberian Peninsula, the Portuguese Stock Index (PSI-20) and the Spanish Stock Index (IBEX-35). We used daily data from January 1993 to September 2001 for the Portuguese stock index and daily data from October 1990 to...

This paper explores the growing involvement of new types of non- commodity-sector-related players in commodity futures markets. This includes a discussion on the role of managed funds, the impact of the use of commodity warrants, and the direct involvement of banks. The impact of this new form...