The emergence of new economic activities is the driving force of economic development. The development of such activities is often ‘lumpy’, manifesting itself in rapid growth of particular regions or sectors. Recognition of these facts requires a reorientation of the analytical frameworks...

Why are some spatial differences in land rents and wages not bid away by firms and individuals in search of low-cost or high-income locations? Why does economic activity cluster in centers of activity? And what are the consequences of remoteness from existing centers?