“…County‐to‐county commuting patterns represent complex social and economic interactions between regions that involve workers, firms, industries, residential communities, transportation, and amenities, and they are influenced by strong forces including agglomeration economies. Patuelli et al. (2009) point out that while Krugman (1991) and others (e.g., Rossi‐Hansberg and Wright 2006) have analyzed relationships between growth in urban areas, agglomeration economies, and commuting costs, “A point of concern is that, in these spatial (growth and interaction) models, the effects of spatial typology and connectivity are only implicitly included, but never explicitly considered and discussed” (Patuelli et al.…”