Whether any scientific studies had been conducted to show that a significant increase in employee allowance for (a) fixed and (b) mobile phone, as proposed in the National Estimates of Expenditure 2013 Budget, would substantially contribute to improved service delivery; if so, (i) which studies, (ii) who conducted the studies, (iii) where were the specified studies conducted, (iv) how were they monitored and (v) what were the findings?