This study examines how the performance experience of actors shapes the stability and variability of routine performances. We argue that experience in performing a routine provides actors with greater understandings of the routine and its context, which provides an overall stabilizing effect on routine performances, but experience also heightens actors' capacity to adjust performances in response to changes in contextual constraints. Our analyses of routine performances in the waste collection sector are generally consistent with the arguments. Our findings also highlight differences in how actors' experience affects responsiveness to different forms of change in contextual constraints. These findings help to extend our understanding of the micro-foundations of routines. processes (i.e., dynamic routines) that support adaptation, it has given little explicit attention to the role that individuals within the routine may play in adapting routines to changes in the context.More recently, scholars have focused on the agency of actors within routines. This research explores how the internal properties of routines contribute to their stability and variability, and describes routines as 'generative systems' in reference to the internal components and mechanisms that enable routines to generate a variety of performances (Feldman and Pentland, 2008, p. 302). These performances refer to the sequences of actions that are carried out by actors engaged in the routine, and research suggests that these sequences are never identical (Cohen, 2007;Pentland et al., 2011;Salvato, 2009). The concept of performance experience plays a central role in this generative model of routines. Performance experience contributes to stability through processes that form and maintain actors' understandings of the routine, and to variability through modification processes involving endogenous change that reshape how actors understand the routine (Feldman and Pentland, 2003;Rerup and Feldman, 2011). While this research has extended our understanding of the agency of actors in routines, it has focused primarily on processes of endogenous change, and gives less consideration to how actors may influence responses to changes in context.The purpose of this study, then, is to help advance our understanding of routines by considering both the challenges of responding to contextual changes, as emphasized in traditional routines scholarship, and the agency of individual actors, as emphasized in recent research on routines. This aim is consistent with Cohen's (2007) call for developing more systematic understanding of routines as patterns of actions that reflect stability and variability amid changes in the environment surrounding them. Our research highlights that the individual actors performing the routine can themselves play a central role in shaping these patterns of action. In particular, this study helps to extend the routines literature by considering how the performance experience of actors may influence responsiveness to contextual changes.Differing...