Focus on the pronunciation of duty differential
English definition of “duty differential”
noun [C] ECONOMICS, TAX, COMMERCE
› a difference between the rates of tax charged in a country on similar types of goods: The Government announced a widening of the duty differential in favour of cleaner fuels.
› a difference between the rates of tax charged by different countries on similar goods: They discussed the problem of duty differentials between Northern Ireland and the Republic of Ireland.