This paper examines the relationship between trade propensities and foreign ownership shares in Indonesian manufacturing in 1992 and 1994. Foreign plants had relatively high trade propensities, and plants with high foreign ownership shares had the highest export propensities. Differences in import propensities among foreign ownership groups were relatively small. It might be argued that trade propensities determine foreign ownership shares in Indonesia, which historically waives foreign ownership restrictions for firms that export much of their output. However, this paper argues that causation runs from foreign ownership shares to trade propensities, because multinational firms have strong incentives to restrict access by uncontrolled affiliates to their international marketing networks, and because the relationship persists even when the effects of policy distortions are accounted for. Correspondingly, ownership restrictions that discriminate among foreign ownership groups are likely to reduce the exports of foreign multinational affiliates, but to have a much weaker effect on imports.