This paper examines the questions of whether the incumbent responds to entr
y and which firms respond to entry in an industry, by using a data sample o
f the US luxury car market during the period of 1986 and 1997. The statisti
cal analysis finds that the incumbent's response varies across firms, but s
ome group of firms responds to entry similarly. In particular, this paper f
inds that the German exporters of luxury cars respond significantly to the
entry of a Japanese rival in the US market similarly by reducing their pric
es and mark-ups. The extent to which they respond to entry become greater a
s the Japanese firm's market share increases. The statistical test accepts
the hypothesis of the equality of coefficients among the German firms, but
rejects the hypothesis when both the German and British firms are included
in the sample. (C) 2002 Elsevier Science B.V. All rights reserved.