How do factors that are specific of family firms (such as the cross-generational logic) influence, and are influenced by, the phenomenon of employee entrepreneurship? Despite a burgeoning stream on nonfamily members in family firms, the relationship between familiness and employee entrepreneurship has been overlooked that far. This study addresses this gap and explores how familiness co-evolves with employee entrepreneurship in an exemplary longitudinal case involving two enterprises: a family firm founded by an ex-employee spanning 20 years and two generations, and its originating enterprise, a family firm (itself stemming from employee entrepreneurship, as well) spanning 150 years and five generations. The in-depth analysis of this case, based on thick source triangulation and mixed top-down and bottom-up coding, allows us to inductively propose a model of the key attributes of familiness that are relevant to the phenomenon of employee entrepreneurship, and their consequences. The proposed model highlights previously hidden aspects and consequences of familiness, including the perceived role of ex-employees as “prodigal stepchildren”, the cross-generational mirroring effect between the generating firm and the spawn, and the possible role of the new ventures stemming from employee entrepreneurship as sources of inter-generational spill-in processes.

家族企业特有的因素（例如跨代逻辑）如何影响并受到员工创业现象的影响？尽管家族企业中非家族成员的人数迅速增加，但到目前为止，家族与雇员创业之间的关系一直被忽视。这项研究解决了这一差距，并在一个涉及两个企业的示例性纵向案例中探讨了家族如何与员工企业家精神一起演变：一个由前雇员成立了20年零两代的家族企业，以及它的原始企业，一个家族企业（本身也来自员工的创业精神），历时150年，历经5代。基于厚源三角剖分以及自上而下和自下而上的混合编码对这种情况进行的深入分析，让我们可以归纳地提出与员工创业现象及其后果相关的家庭关键属性的模型。拟议的模型强调了家庭成员先前隐藏的方面和后果，包括前雇员被视为“浪子继子”的作用，发电企业与衍生企业之间的跨代镜像效应以及源自于此的新企业的可能作用。员工创业精神是代际溢出过程的源头。