Government Policy Sankey

This visualization is an alternative to the live government policy simulator--please see that first for a primer. The visualization here is connected to the same data and model, yet rather than depict results of any tutoring or extracurricular interventions gradually, i.e. as students respond, it assumes the population moves instantly into the steady state.

[Continued below....]
Given that policymakers will often first design policy under equilibrium assumptions, only later optimizing how the policy will unfold on implementation, a static visualization of this sort here may be helpful.

As an aside, one might also notice something seemingly odd with this visualization: if implementing an intervention but then reversing it, the percentages of students on and off track at each stage might differ from what appeared originally. This is because, to represent real-world uncertainty, the underlying model here decides randomly whether each given student will respond to the intervention (the probability a function of the intervention intensity), and even the process of reversing it is not deterministic. Of course, in an alternative representation, we could have depicted expected outcomes. Yet outcome variance is a phenomenon that I believe one might very well get a best feel for by way of experiencing it, and hence I decided to maintain this randomization. User testing might lead to a different course on this eventually.

Try these things with this demo:

  • Move the mouse over the bars and links to see student percentages
  • Drag the sliders to implement tutoring and extracurricular interventions -- and then check the percentages again to see how they've changed
  • See the live government policy simulator demo for a broader discussion of the intent of this kind of visualization