European administrative networks (EANs) are an increasingly prominent form of European Union (EU) governance. Although these networks are typically portrayed as important and flexible forms of organization, we lack knowledge of their temporal dimension, including their development in times of crisis. This paper provides a first analysis of network interaction as it unfolds before and during times of severe crisis for the EU internal market. Specifically, we examine interactions in the EU internal market network SOLVIT. This network offers member states both a formalized procedure for the bilateral resolution of cases of alleged misapplication of EU law, and an informal network for general discussions on internal market topics and SOLVIT-related matters beyond specific case-resolution. Based on unique three-wave survey data, we develop a continuous-time model (stochastic actor-oriented model) to analyze the evolution of SOLVIT's informal interactions over time. In explaining these developments, we reflect on the importance of two crises: the exit of a central SOLVIT member (the United Kingdom), which drove informal interactions to a great extent, and COVID-19, which led to great sudden uncertainty and challenges for the implementation of internal market law. Our results show that the network is remarkably stable and despite, or rather because of, these crises, has become denser over time.

中文翻译：

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危机时期的欧洲行政网络：探索内部市场网络 SOLVIT 的时间发展


欧洲行政网络 （EAN） 是欧盟 （EU） 治理的一种日益重要的形式。尽管这些网络通常被描绘成重要而灵活的组织形式，但我们缺乏对它们的时间维度的了解，包括它们在危机时期的发展。本文对欧盟内部市场在严重危机之前和期间展开的网络交互进行了初步分析。具体来说，我们研究了欧盟内部市场网络 SOLVIT 中的互动。该网络为成员国提供了一个正式的程序，用于双边解决涉嫌滥用欧盟法律的案件，也提供了一个非正式网络，用于就内部市场主题和 SOLVIT 相关事项进行一般性讨论，而不仅仅是具体案件解决。基于独特的三波调查数据，我们开发了一个连续时间模型（随机面向参与者模型）来分析 SOLVIT 非正式交互随时间的演变。在解释这些发展时，我们反思了两个危机的重要性：SOLVIT 核心成员（英国）的退出，这在很大程度上推动了非正式互动，以及 COVID-19，它为内部市场法的实施带来了巨大的突然不确定性和挑战。我们的结果表明，该网络非常稳定，尽管，或者更确切地说，由于这些危机，随着时间的推移，网络变得更加密集。