文摘
We complement and extend Wolf’s (2000) work on intra-national home bias for the US We estimate US home bias using all waves of the Commodity Flow Survey (1993–2012). PPML estimates point to a less relevant presence of border effects across US States. However, US internal market is less commercially integrated in 2012 than in 1993. Despite a lower presence of border effects across US States, those are increasing over time.