7Horst T. The industrial composition of US exports and subsidiary to the Canadian market[J]. American Economic Review, 1972, 62(1): 37-45.
8Pfafermayr M. Foreign outward direct investment and exports in Austrian manufacturing: substi-tutes or complements[J]. Weltwirtschaftliches Archive, 1996, 132(3): 501-521.
9R E Lipsey, M Y Weiss. Foreign production and exports of individual firms[J]. Review of Economics and Statistics, 1984, 66(5): 304-307.
10Jie Joen C, Belderbos R, Sleuwaegen L. Local content requirements, vertical cooperation, and foreign direct investment[R]. NIBOR, Research Memoranda, Maastricht University, 1998.
