7Adler, M., Dumas, B., Exposure to currency risk: definition and measurement, [J] Financial Man- agement Summer, (1984) ,pp.41-50.
8Bart ram, S. M. , Karolyi , G. A. , The impact of the introduction of the Euro on foreign exchange rate risk exposures [J ] . Journal of Empirical Finance 2006. 13 (4-5),pp519 -549.
9Bodnar, G. and Gent ry , W. , Exchange rate exposure and industry characteristics : evidence from Canada ,Japan , and the USA[J ] . Journal of International Money and Finance 1993 (12) , pp. 29-45.
10Di Iorio, A., Faff, R., 2000. An analysis of asymmetry in foreign currency exposure of the Australian equities market.Journal of Multinational Financial Management 10, 133-159.