“…In their model, a firm knows its own characteristics and those of its competitors, along with the future distribution of industry structure, conditional on the current structure. From an empirical perspective, a recent stream of literature has focused on the post-entry performance of firms and has investigated survival, growth and early exit of newborn firms (see, for instance, Reid, 1991;Boeri and Cramer, 1992;Baldwin and Rafiquzzaman, 1995).Within this field, it is possible to analyse the relationship between ex-ante features of entry, survival and, in the case of survival, post-entry performance of newborn firms, which can be measured in terms of employment growth, profitability or market penetration.For instance, some of these studies have discovered a positive relationship between startup size and survival (see Audretsch and Mahmood, 1995;Mata, Portugal and Guimaraes, 1995; for more controversial results, see Audretsch, Santarelli and Vivarelli, 1999a;and Agarval and Audretsch, 2001). Others have found a negative relationship between start-up size and post-entry growth, thus rejecting Gibrat's Law (see Gibrat, 1931;Hall, 1987;Evans, 1987;Dunne and Hughes, 1994;Hart and Oulton, 1996;Sutton, 1997;Vivarelli, 2001 and.…”