Abstract
In this paper we analyze patterns of trade in a Ricardian trade model with joint production. First, we treat a simple two-country and two-good case to derive the necessary and sufficient conditions for complete specialization of the world economy with joint production. Then, we move to a three-country and three-good case and show that, if joint production is allowed to exist, multiple production points of efficient complete specialization may occur. This is shown by a numerical example with illustrations of the world production frontier. We conclude that the conditions for complete specialization in joint production drastically differ from the case without joint production.
JEL Classifications: D24, F14
