“…Our data are right-censored because by the end of the sample period many firms in the sample had not yet expanded beyond one or two subsidiaries in China, and it was unknown whether and when they would expand further. Whereas early EHA methodologies were developed to study duration data related to a single, non-repeatable event (such as death), EHA models have since evolved to accommodate multiple or repeated events (Blomkvist, Kappen, & Zander, 2010;Box-Steffensmeier & Zorn, 2001;Ezell et al, 2003;Kappen, 2011). Commonly used repeated-hazards models include the Andersen-Gill model (Andersen & Gill, 1982), the Prentice-Williams-Peterson model (Prentice, Williams, & Peterson, 1981), and the Wei-Lin-Weissfeld (WLW) model (Wei, Lin, & Weissfeld, 1989).…”