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While some argue the industry is the most competitive in Europe, others say the opposite.
"With aggressive companies like Dell, anybody who tries to hold up the price of goods will be eaten alive," claimed Ian Snadden, director of SME and channel sales at Fujitsu Siemens.
But Tony Lock, senior analyst at Bloor Research, said vendors were dictating prices to the channel through unofficial cartels "to avoid channel conflict".
The Department of Trade and Industry claimed the bill would "deliver millions of pounds worth of benefits for consumers, business and the economy".