We show how an extended theory of fair wages can be incorporated in th
e two-by-two Heckscher-Ohlin model. An important feature of the model
is the existence of involuntary unemployment. Several results stand ou
t. First, there is no longer a simple relation between measures of fac
tor abundance and trade patterns. Second, factor-price equalization wi
ll generally not occur. Third, differences in social norms explain why
terms of trade shocks produce nonuniform adjustments in real wages an
d unemployment across otherwise similar countries. Fourth, losses from
trade may occur. Finally, in countries where fairness considerations
are important, tariffs may increase welfare.