Of Mice and Merchants: Connectedness and the Location of Economic Activity in the Iron Age
利用腓尼基人首次大规模穿越地中海的贸易扩张，构建基于地理的连通性指标，发现铁器时代连通性更好的海岸地区有更多考古遗址，表明连通性促进了早期经济活动。
Abstract We study the causal relationship between geographic connectedness and development using one of the earliest massive trade expansions: the first systematic crossing of open seas in the Mediterranean during the time of the Phoenicians. We construct a geography-based measure of connectedness along the shores of the sea. We relate connectedness to economic activity, which we measure using the presence of archaeological sites. We find an association between better-connected locations and archaeological sites during the Iron Age, at a time when sailors began to cross open water routinely on a large scale. We corroborate these findings at the world level.