Dynamic capabilities and high-tech entrepreneurial ventures' performance in the aftermath of an environmental jolt 1 Introduction Teece and colleagues (1997, p. 516) define dynamic capabilities (DCs) as "the firm's ability to integrate, build and reconfigure internal and external competences to address rapidly changing environments". Thus, DCs reflect the "capacity of an organization to purposefully create, extend or modify its resource base" (Helfat et al. 2007, p. 4). 1 Over the past decades, numerous contributions have investigated the relationship between DCs and firm performance, concluding that the performance benefits of DCs are not automatic (see Fainshmidt et al. 2016 for a meta-analysis of these studies), but depend on diverse contingencies. In particular, taking direction from Teece et al. (1997), this literature has mainly focused on the effects of environmental contingencies on the DC-performance relation 2. Some studies have shown that economic (Fainshmidt et al. 2016) and institutional conditions (Dunning and Lundan 2010) influence the performance benefits of DCs; other studies have investigated the effects on the DCs-performance relationship of environmental dynamism 3 (Karna et al. 2016) and competitive turbulence (Danneels 2012; Wilden and Gudergan 2015). In general, prior research on how the environment shapes the DCs-performance relationship has (implicitly) assumed "system stability", namely a condition where environmental changes are gradual and not disruptive. Instead, scholars have ignored the case of discontinuous 1 DCs are based on a complex bundle of skills, processes, routines, organizational structures, and decision rules (Teece 2007). Eisenhardt and Martin (2000, p. 1106) propose a somehow different view, suggesting that, in highvelocity environments, DCs consist in "simple, experiential, unstable processes that rely on quickly created new knowledge and iterative execution to produce adaptive, but unpredictable outcome". While the two perspectives relies on different assumptions and theoretical underpinnings, we agree with Peteraf and colleagues (2013, p. 1407) in considering them as largely complementary, in spite of their different views on the nature of DCs. We also concur with Peteraf et al. (2013) that "regardless of the level of market dynamism or the nature of dynamic capabilities, dynamic capabilities may enable firms to attain a sustainable competitive advantage in certain conditional cases" (see also Di Stefano et al. 2014). In this study, we address this over-arching issue in the specific case of the occurrence of an environmental jolt. 2 An exception is in Wilden et al. (2013), who study how the effect of the use of DCs on firms' competitive advantage depends on firms' internal organization. 3 Environmental dynamism is "the amount and unpredictability of change in customer tastes, production or service technologies, and the modes of competition in the firm's principal industries" (Miller and Friesen 1983, p. 233).