For decades researchers have tried replicating the top-down, hierarchical model of the human brain to create artificial intelligence in computers, without success.

FORBES: The Birds and Bees of Sustainability

The small-but-steady approach of birds, bees, and ants offers a better model for changing human behavior than the hop-to-it top-down model used by many companies and governments.

FORBES: The Birds and Bees of Sustainability

Disillusioned with what he had seen of the traditional top-down, government-funded social services model, and now equipped with some knowledge of business, Lance decided on a capitalistic approach.

FORBES: God is his business planner

Besides, it turns out the human brain may not work on a top-down hierarchical model after all.

FORBES: The Birds and Bees of Sustainability

Mr Cameron promised to end the "old-fashioned, top-down, take-what-you're-given" model of public services.

BBC: David Cameron: End state monopoly over public services