“…The first group of empirical studies used cross-sectional data in a single year and found positive spillovers (Caves, 1974;Globerman, 1979;Blomström and Person, 1983;Blomström and Wolff, 1994;Nadiri, 1991;Blomström and Sjöoholm, 1998). But the set of second group of studies, which used panel data, found negative spillovers (Aitken and Harrison, 1999;Djankov and Hoeckman, 2000;Kathuria, 2000;Konings, 2000). The findings pointed out that many of the earlier studies, that found positive spillovers, did not introduce control variables of sectoral nature.…”