“…This de®nition is quite similar to de®nitions provided in earlier studies in the area (e.g. Aoki, 1990;Baldissera, 1993;Barca, 1995;Brioschi et al, 1989;Buzzacchi and Colombo, 1996;Cable and Yasuki, 1985;Chang and Choi, 1988;Daems, 1978;Encaoua and Jacquemin, 1982;Feenstra et al, 1997;Gerlach, 1992;van Hulle, 1996;Khanna and Palepu, 1996;Le, 1978;Lincoln et al, 1992;Strachan, 1976;Weinstein and Yafeh, 1995). The ®rms involved are legally independent, typically having several shareholders, which distinguishes BGs from the wholly integrated corporations characterized by ®at and hierarchy (Williamson, 1975).…”