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Cult stock Research In Motion has so far lived up to its dot-com hype, but economic turmoil could slow the Blackberry maker's surging business. Bear Stearns (nyse: BSC ) analyst Andrew J. Neff said that economic trends could throttle Research in Motion (nasdaq: RIMM )'s sales.

The New York Stock Exchange has proposed changing the way it allocates its $105m (€73m) payments to specialist firms so that they are performance-based, as increasing volumes are traded electronically. In a presentation to analysts last month, Duncan Niederauer, president, co-chief operating officer and head of US cash markets at NYSE Euronext, said the exchange pays an average of $9m a month to the specialist firms.