We propose to stress three cross-sectional limitations on proximity analyses: i) the lack of a distinction between the question of how the relationship between actors unfolds and that of how relations are established between actors, ii) the way the market is ignored as an essential means of forging relations, iii) the importance of distinguishing several levels of action. To demonstrate the significance of our approach, we also summarise the results of several studies conducted by us with other colleagues based on the theoretical framework introduced in this chapter.