The Performance of Seaport Clusters - RePub - Erasmus Universiteit ...

Chapter 8 – Clustering in Seaports 101
Only data on levy payers are available to identify the relevant cluster region. In this data
source firms are grouped in a number of industries. These are not detailed enough to single
out port related manufacturing and trading firms, but good enough to identify cargo handling,
transport and logistics firms. The concentration analysis is based on these firms alone. The
results of the concentration analysis are given in Table 28. The municipalities with a
concentration index of 1.7 of higher (bold in the table) are part of the port cluster region.
Table 28: The port cluster region in Durban (based on data for 2002)
Municipality Share cluster activities in municipality
Chatsworth 6.0%
Inanda 4.1%
Durban 3.5%
Camperdown 2.8%
Pinetown 2.7%
Umzintu 1.7%
Umlazi 0.9%
8.7 The cluster population and port region in the LMPC
The cluster population of the LMPC can be determined relatively well, because US Census
publishes detailed establishment statistics. Table 29 shows the cluster population of the
LMPC.