The paper decomposes a geographical concentration index to examine the temporal scope of a spillover, which is the period of time over which one firm’s activity directly affects the location of other firms’ activities. Natural advantages are fixed over reasonably long time periods, but if...

The paper decomposes a geographical concentration index to examine the temporal scope of a spillover, which is the period of time over which one firm's activity directly affects the location of other firms' activities. Natural advantages are fixed over reasonably long time periods, but if...

The paper decomposes a geographical concentration index between time-invariant and time varying location factors to examine the temporal scope of a spillover. This is the period of time over which one firm's activity directly affects the location of other activities in the same industry. An...