A new report by investment bank Lehman Brothers has warned UK businesses that there is a one-in-three chance of recession over the next two years.The firm claims that interest rates will be cut to four per cent by the Bank of England, in an effort to boost the economy, according to a report by the BBC."It has become clear that the banking system – and hence the credit creation process – is under considerable strain," Lehman Brothers said.The bank also predicts that the UK housing market will be heavily impacted, with prices expected to drop around eight per cent by December."Given the importance of housing wealth for consumer spending, this points to an economic slowdown that could last some time," the bank added.According to a report in the Telegraph, Lehman Brothers has cut its 2009 growth forecast from two per cent to just over one per cent.