asked the Chancellor of the Exchequer what is his estimate of the revenue that would be obtained from the payroll tax if applied to the motor industry and the machine tool industry, respectively.

The answer would depend upon the rate or rates at which the surcharge was imposed, the length of time for which it remained in force and the number of employees in employment in the industries concerned during that time. With so many variables I cannot hazard any estimate of revenue from the surcharge as it might affect particular industries.