 In the years since the laws passing, Goldman Sachs and other investment banks (Morgan Stanley, JPMorgan Chase) have branched out into ownership of a wide variety of enterprises including raw materials, such as food products, zinc, copper, tin, nickel and, aluminum.Some critics, such as Matt Taibbi, believe that allowing a company to both "control the supply of crucial physical commodities, and also trade in the financial products that might be related to those markets", is "akin to letting casino owners who take book on NFL games during the week also coach all the teams on Sundays".Former Goldman Sachs trader Matthew Marshall Taylor was convicted of hiding $8.3 billion worth of unauthorized trades involving derivatives on the S&P 500 index by making "multiple false entries" into a Goldman trading system.