Empirical studies of trade reforms suggest that these reforms have a surpri
singly small impact on a country's industrial configuration. This industria
l structure inertia is difficult to rationalize in standard trade models. T
his paper develops a two-sector industry dynamics model in which industrial
composition inertia arises naturally. The model is then used to study the
consequences of different types of trade reforms (e.g. permanent, temporary
, gradual, pre-announced) on investment, employment composition and income
distribution. (C) 2000 Elsevier Science BN. All rights reserved.