Interesting cut at measuring decision making effectiveness from Bain.
Bain says that:
One thing that sets great companies apart is the ability to make high-quality decisions.
But it isn’t just decision quality—the top performers also make those decisions quickly and execute them effectively. And they don’t spend too much or too little effort in the process.
Source: Bain Decide & Deliver
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In other words, evaluate decision making along 4 dimensions:
The Homa Files 