Bandick, Roger; Görg, Holger - 2009
more pronounced in sectors
with a high degree of product differentiation and high R&D intensity such as chemicals, metals … hazard. The β parameters show the effects of the
explanatory variables X (at the plant and firm level) on the hazard rate …. We,
therefore, include both variables in the vector X. Size is measured as log employment size
and plant age as years …