It's true that they could use more differentiating colors, like SN ZAP, from orange to purple. But I don't think that's the main issue, I think it's more because most of the values are in the 2-5 range. This makes it harder to differentiate. What value would you consider to be a high rate?
They're probably using a linear scale, which isn't ideal for showing heavily skewed data. I'd probably use a log scale or quantiles. Either way would let us see more of the differences amongst the majority of countries.
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That's a great idea! This format is much more effective for displaying the data.
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For all the issues with mainstream econ training, we do learn a lot about data visualization.
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EXCELLENT idea. Would love to go that.
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