本文將生產流程切割技術引入Heckscher-Ohlin模型，探討當引入兩階段生產流程切割的固定規模報酬技術如何影響參與國的福利，並藉由一國資本稟賦變動探討各別國家和世界生產模式及貿易型態的內生性變動，並比較其在自給自足和有無生產切割自由貿易下的福利變化。研究結果發現，在有生產流程切割技術的自由貿易模型下，兩國仍根據比較優勢生產；此外，當兩國在非專業化生產且切割產業為跨國垂直分工生產的情況下，兩國在有生產流程切割之自由貿易的福利才會同時較沒有生產流程切割的自由貿易福利高；否則在自由貿易下只會有一國的福利會提高而另一國福利會下降的現象。

We incorporate a fragmenting technology into a Heckscher-Ohlin model to investigate whether countries gains from fragmentation and finds the effects of fragmentation on national welfare, on patterns of production and trade, and on factor prices. We illustrate that the both countries can gains from fragmentation if the two countries need to be based on comparative advantage and in the fragmen¬tation industry for them. Moreover, we demonstrate that even in a country that gains from fragmentation, it is possible that some factor owners within that country will lose.