productivity (MFP) growth in the transportation industry over the postwar period, 1948-87. Official data on output and employment … data reduce the magnitude of the post-1973 productivity slowdown in transportation MFP growth from a previously reported 2 … airports, air traffic control, and highways, do not change appreciably the pattern of postwar MFP growth in transportation …

innovative activities in the transportation and warehousing sector of the U.S. economy. We suggest multiple avenues for future …

The theoretical framework of urban and regional economics is built on transportation costs for manufactured goods. But …

This paper combines data on GDP, unemployment, and Google's COVID-19 Community Mobility Reports with data on deaths …

of the Tiebout hypothesis using historical variation in mobility costs. Our extension of the Tiebout model to incorporate … such costs yields the following comparative statics: as mobility costs fall, the heterogeneity across communities of … mobility costs have fallen over time, a natural test of the Tiebout hypothesis is to take these predictions to the data here …

How effective are restrictions on mobility in limiting COVID-19 spread? Using zip code data across five U.S. cities, we … estimate that total cases per capita decrease by 20% for every ten percentage point fall in mobility. Addressing endogeneity …