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Lumifer comments on Open thread, Nov. 24 - Nov. 30, 2014 - Less Wrong Discussion

4 Post author: MrMind 24 November 2014 08:56AM

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Comment author: Punoxysm 25 November 2014 03:27:50PM *  1 point [-]

In business, almost all executive decisions (headcount and budget allocation, which unproven products to push ahead with aggressively, translating forecasts for macroeconomic risks into business-specific policies, who to promote to other executive level positions, etc.) are made with substantial uncertainty. Or to put it another way, any executive-level decision-maker would be paralyzed without strong priors. This is especially true in fast-changing or competitive markets, where the only way to collect more evidence without direct risk is to let your competitors jump in the water first.

In other words, the kind of certainty we hold out for (often vainly) in science is almost unknown in many aspects of business, and the most critical decisions are often the most uncertain.

It's very "Black Swan" (in the sense of Taleb's whole, not just tail risk).

Thoughts?

Comment author: Lumifer 25 November 2014 04:37:39PM 2 points [-]

any executive-level decision-maker would be paralyzed without strong prior

I don't think that's necessarily true, just having a high risk tolerance works as well. I also think you underestimate the amount of evidence present -- e.g. in most organizations the next-year budget is a variation on the previous year's budget.

the kind of certainty we hold out for (often vainly) in science is almost unknown in many aspects of business

Yes, of course. That's why, for example, risk management is an important part of doing business but is not normally a big part of doing science...

Comment author: Punoxysm 25 November 2014 09:39:15PM 0 points [-]

Risk tolerance is a good, possibly more correct, way of looking at it. Actually most executives probably have a mixture of risk tolerance and strong priors.

Some businesses can get away with only relatively low-risk, safe decisions and focus on efficient operations. However, I think the majority of businesses, especially newer and growing ones, can't get away with this consistently or for a long time. And most businesses simply don't have that long a life, period.

Setting a budget based off last years' when your revenue is growing 50%+ YoY won't work well.

What I was thinking of more specifically is that something like setting a budget can be defined as a rigorous optimization problem, but with highly uncertain parameters (marginal return on investment from various units of the business). Any decision made implies a combination of prior over those values and risk tolerance.

Comment author: Lumifer 25 November 2014 09:56:36PM 0 points [-]

Any decision made implies a combination of prior over those values and risk tolerance.

If you treat budgeting as an optimization problem, you need forecasts, not priors.

I would also suspect that real-life business budgets will be hard to set as "rigorous optimization problems" because in reality you have discontinuities, nonlinear responses, and all kinds of funky dependencies between different parts of the budget.