Throughout the second half of the 20th Century, urbanization, new technologies, rapid labor-saving productivity growth in primary industries, and improved highways combined to create large-scale rural-urban functionally integrated regions. These forces have raised the stakes for regions in their...

The export base hypothesis is that a region's growth is led by export demand, given perfectly elastic factor supplies. It is a rationale for “sector-based” rural development policies, and it is formalized by input-output models. But it is contested by modern trade, migration, and growth...