This paper assesses the effects of reducing tariffs under the Doha Round on market access for developing countries. It … coverage or complex rules of origin. Thus lowering tariffs under the multilateral system is likely to lead to a net increase in …

distinguish between productivity gains arising from lower tariffs on final goods relative to those on intermediate inputs. Lower … output tariffs can produce productivity gains by inducing tougher import competition whereas cheaper imported inputs can … tariffs. A 10 percentage point fall in output tariffs increases productivity by about 1%, whereas an equivalent fall in input …