Narrow Results

This paper examines the effects of “fragmentation,” defined as the splitting of a production process into two or more steps that can be undertaken in different locations but that lead to the same final product. Introducing the possibility of fragmentation into simple theoretical models of international trade, the paper finds the effects of fragmentation on national welfare, on patterns of specialization and trade, and on factor prices. Models examined include the Ricardian Model and the Heckscher-Ohlin Model, both for small open economies and for a two-country world. Results are as follows: 1. If fragmentation does not change the prices of goods, then it must increase the value of output of any country where it occurs and that of the world. 2. If fragmentation does change prices, then fragmentation can lower the welfare of a country by turning its terms of trade against it. 3. Even in a country that gains from fragmentation, it is possible (but not necessary) that some factor owners within that country will lose. 4. To the extent that factor prices are not equalized internationally in the absence of fragmentation, fragmentation may be a force toward factor price equalization. © 2001 Elsevier Science Inc. All rights reserved.

Economic globalization causes an increasing international fragmentation (disintegration) of value-added chains, whereby firms outsource components of production to foreign markets. There is a high level of concern about unwelcome distributional effects. This paper provides a theoretical treatment of this issue within a general Heckscher–Ohlin framework, allowing for an arbitrary number of goods, factors, and fragments. It shows how a fragmented production equilibrium is disturbed by lower costs of fragmentation, and it introduces the concept of effective prices of fragments to derive general results that characterize the distributional consequences of an increase in international fragmentation occurring simultaneously in several industries.