Evidence-based policymaking: is there room for science in politics?

Jennifer Guay – Apolitical

To describe something as ‘policy based evidence making’ is to be deliberately rude at two levels, first because it implies the use of evidence to conceal rather than illuminate, but secondly because it implies a failure to recognise that evidence should drive policy (and thus, though often less explicitly, politics).

Evidence based policy, on the other hand, is a thing of virtue for which we should all be striving. That much is obvious to right-thinking people. In recent times, the generality of that thought has been reinforced by very specific approaches. If you haven’t tested your approach through randomised controlled trials, how can you know that your policy making has reached the necessary level of objective rigour?

This post is a thoughtful critique of that position. At one level, the argument is that RCTs tell you less than they might first appear to. At another level, that fact is a symptom of a wider problem, that human life is messy and multivariate and that optimising a current approach may at best get you to a local maximum. That is of course why the social sciences are so much harder than the so-called hard sciences, but that is probably a battle for another day.

Pointing at the Wrong Villain: Cass Sunstein and Echo Chambers

David Weinberger – Los Angeles Review of Books

At one level, this is an entertainingly polite but damning book review. At another, it is a case study in how profound expertise in one academic domain does not automatically translate into the distillation of wisdom in another. But beyond both of those, the real value of this piece is in drawing out the point that in the realm of ideas, as with so many others, the internet is a place where new things are happening, not just the old things being done a bit better. We need to get better not just at knowing things, but at how to know things. How, in this new world, do we take advantage of its strengths to come at knowledge in different ways?

I had got to the end of reading this before noticing that it was by David Weinberger. That would have been endorsement enough – he has been sharing deep insights about how all this works for many years and is always a name to look out for.

Policymaking must become more empathetic rather than continuing its current overreliance on economic measures

There is a caricature of policy making in which it is presented as an exercise in introspection, free of evidence and free in particular of contact with those who might experience and understand the context and impact of its delivery. Like all good caricatures, there is something recognisable in that, and like all good caricatures, those caricatured more easily see the distortion than the likeness.

The underlying challenge in this post is a good one. Emphasis on things which can be measured distorts attention from things which may be just as important but are more elusive. Understanding the variation around a central figure is as important as understanding the central figure itself – and can tell you very different things. Broader and more qualitative approaches are an essential complement to narrower and more quantitative ones.

But policy makers are people too. Dismissing them as ivory towered elitists is too easy. It would be good to have more empathetic policy makers, but more empathy with policy makers is part of what we need to get there. Policy making is itself the product of a system – and understanding the drivers and behaviours of that system is the essential first step to changing it.

Emmanuel Lee – LSE Impact Blog