It is estimated that the 2011 reduction in income to the Social Insurance Fund as a result of the halving of the lower rate of employers' PRSI from 8.5% to 4.25% for those earning €356 or less, will be in the region of €85m in 2011. This is based on implementation of the measure from the beginning of July 2011. The 2012 reduction in income to the Fund is estimated to be €190m. It is not possible to estimate the number of jobs directly attributable to this measure as the cost of employment is only one of the factors affecting job creation, albeit an important one.