Diverse ecosystems composed of competing and varying parties are more resilient and organic growth rates often top central managed ones in the mid and long term.
One awesome example is New York where the Made In New York label is widely used by multiple parties. Check the awesome map to see the density and diversity they have achieved in just a few short years. It is no wonder they ranked so high in the Startup Genome (Startup Compass) research database.
Here aere some interesting examples. Worth comparing to your local ecosystem in your city?