| Region | Total inertia | Complementarity ratio | Trend (percentage change) | ||
| Grand Pearl River Delta | 2004 | 2010 | 2004 | 2010 |
|
| (N = 11) | 0.828 | 0.753 | 8.3 | 7.5 | −9% |
| Randstad | 1996 | 2002 | 1996 | 2002 |
|
| (N = 14) | 0.545 | 0.493 | 4.2 | 3.8 | −9.5% |